{"title":"Grundfos","description":"No matter for which purpose an efficient and energy saving pump solution is required, Grundfos offers a high-quality solution.","products":[{"product_id":"519651","title":"Grundfos - 519651 - 3\/4\" 15\/16 Bronze Flange Set","description":"\u003ch2\u003eGrundfos 519651 — 3\/4″ Bronze Flange Set\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGrundfos 519651\u003c\/strong\u003e is a robust bronze flange kit compatible with UP and UPS circulator pumps. This set includes everything needed — flanges, gaskets, and hardware — to provide reliable, serviceable connections for hydronic heating or hot water loops. \u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDurable \u003cstrong\u003ebronze construction\u003c\/strong\u003e, ideal for hydronic systems\u003c\/li\u003e\n\u003cli\u003eDesigned for \u003cstrong\u003e3\/4″ NPT\u003c\/strong\u003e connections to match UP\/UPS inlet\/outlet ports \u003c\/li\u003e\n\u003cli\u003eFull installation kit: includes flanges, gaskets, bolts\/nuts\u003c\/li\u003e\n\u003cli\u003eReliable mounting solution for retrofit or new installs\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant for long-term operation in heating systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHydronic heating and domestic hot water systems\u003c\/li\u003e\n\u003cli\u003eReplacement flange kit for UP \/ UPS circulator pumps\u003c\/li\u003e\n\u003cli\u003eSystems requiring a fixed flange rather than unions\u003c\/li\u003e\n\u003cli\u003eSemi-permanent installations requiring durable fittings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number \/ SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e519651\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBronze Flange Kit (Pair)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnections\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\/4″ NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 flanges, 2 gaskets, bolts \u0026amp; nuts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Pumps\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGrundfos UP \/ UPS circulators with 3\/4″ ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBronze\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdetails class=\"bf-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cdiv class=\"bf-faq-items\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this kit come with gaskets?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — gaskets are included with the flanges and fasteners.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I use this on potable water systems?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Bronze is commonly used in hydronic heating; check your local code for potable approval.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Are the bolts included?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — the full kit includes bolts and nuts for installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eStrong, corrosion-resistant, and ready to install — the Grundfos 519651 bronze flange set provides a stable, long-lasting connection for your circulator pump systems.\u003c\/em\u003e\u003c\/p\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":8998957699,"sku":"519651","price":49.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/9352\/products\/mechanical-3-4-15-16-bronze-flange-set-1.jpg?v=1585059357"},{"product_id":"595926","title":"Grundfos 595926 — Replacement Comfort Valve for UP Comfort Series Circulators","description":"\u003ch2\u003eGrundfos 595926 — Replacement Comfort Valve for UP Comfort Series\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGrundfos 595926 Comfort Valve\u003c\/strong\u003e is designed to work with UP Comfort Series circulator pumps (such as UP15-10 SU7P\/TLC), serving as a thermostatic crossover valve that ensures hot water is quickly available at distant fixtures. This valve is typically installed under the sink at the fixture farthest from your water heater to reduce cold water wastage and maintain hot water presence. \u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSpecifically designed for UP Comfort Series circulator systems \u003c\/li\u003e\n\u003cli\u003eThermostatic valve automatically opens when water cools, closes once hot flow arrives \u003c\/li\u003e\n\u003cli\u003eHelps reduce cold water waste and wait times for hot water\u003c\/li\u003e\n\u003cli\u003eCompact design fits under sinks and tight spaces\u003c\/li\u003e\n\u003cli\u003ePlastic (thermoplastic) construction certified for potable water systems \u003c\/li\u003e\n\u003cli\u003e1\/2″ MNPS (male national pipe straight) threaded connection \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement part for malfunctioning or failing comfort valves\u003c\/li\u003e\n\u003cli\u003eInstalled under the furthest fixture (sink, shower) in a hot water recirculation loop\u003c\/li\u003e\n\u003cli\u003eResidential homes using UP Comfort circulator systems to reduce water waste\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number \/ SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e595926\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eValve Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThermostatic crossover \/ comfort valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\/2″ MNPS threaded (male)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Pump Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUP15-10 SU7P \/ UP Comfort Series circulators :\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDurable thermoplastic \/ reinforced plastic for potable water use \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMeets potable water valve standards (NSF-61 \/ NSF-372) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdetails open=\"\" class=\"bf-faq\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cdiv class=\"bf-faq-items\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does the valve require power or controls?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No — it’s a passive thermostatic valve that operates based on water temperature.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What does MNPS mean?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It stands for *Male National Pipe Straight* — a straight thread design.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Where should I install it?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Under the sink at the fixture farthest from the heater to serve as the crossover in the recirculation loop.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will it work with all UP circulators?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It’s intended for the UP Comfort Series. Compatibility with other models may vary, so confirm threading and functional requirements before use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eReplace a clogged or failed valve easily — the 595926 ensures your hot water recirculation system continues to deliver comfort and water savings.\u003c\/em\u003e\u003c\/p\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":8998958019,"sku":"595926","price":87.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/9352\/files\/595926.png?v=1760643600"},{"product_id":"595916","title":"Grundfos UP 15-10 SU7PTLC-1 —  595916 Comfort System Hot Water Recirculation Pump","description":"\u003ch2\u003eGrundfos UP 15-10 SU7PTLC-1 Comfort System (595916) — Instant Hot Water Recirculation Pump\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGrundfos 595916 Comfort System\u003c\/strong\u003e provides instant hot water to every fixture, eliminating wait time and water waste. Featuring an energy-efficient motor, built-in timer, and comfort valve, this plug-and-play system is ideal for residential retrofits where dedicated return lines aren’t available. \u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInstant hot water delivery — no wasted time or gallons down the drain\u003c\/li\u003e\n\u003cli\u003eIncludes \u003cstrong\u003eComfort Valve\u003c\/strong\u003e for retrofit use without a dedicated return line\u003c\/li\u003e\n\u003cli\u003eBuilt-in timer for automatic operation and energy savings\u003c\/li\u003e\n\u003cli\u003eQuiet, maintenance-free operation\u003c\/li\u003e\n\u003cli\u003eDurable stainless-steel pump housing for long service life\u003c\/li\u003e\n\u003cli\u003ePlug-in line cord simplifies installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eResidential hot water recirculation\u003c\/li\u003e\n\u003cli\u003eHomes without a dedicated return line\u003c\/li\u003e\n\u003cli\u003eRetrofit and upgrade projects for improved water efficiency\u003c\/li\u003e\n\u003cli\u003eTanked Water Heaters only. Not for use with Tankless Units\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUP 15-10 SU7PTLC-1 Comfort System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e595916\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115 V, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\/4” \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHousing Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump with line cord, timer, and comfort valve kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdetails class=\"bf-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cdiv class=\"bf-faq-items\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Do I need a return line for this system?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No — the included Comfort Valve allows installation without a dedicated return line.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How does the timer help energy efficiency?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The built-in timer lets you run the pump only when hot water is typically needed, reducing power and water waste.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can it be used with tankless systems?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e This system is designed primarily for traditional water heaters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eEnjoy instant hot water and reduce waste — the Grundfos Comfort System delivers convenience, comfort, and savings in one easy-to-install solution.\u003cbr\u003e\u003cbr\u003e\u003cspan class=\"Box-sc-1z9git-0 cbDscn\"\u003eThis item replaces: \u003c\/span\u003e\u003cspan class=\"ProductPageObsoleteProducts__ProductPageObsoleteProductsProductIds-sc-k9q5jb-1 ihgvAv\"\u003e\u003cstrong\u003e500800, 99452459\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":8998958851,"sku":"595916","price":321.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/9352\/files\/595916.png?v=1760636570"},{"product_id":"59896781","title":"Grundfos UPS 15-55 SUC — 59896781  Stainless-Steel Circulator Pump with Union Connections","description":"\u003ch2\u003eGrundfos UPS 15-55 SUC (59896781) — Stainless-Steel Circulator Pump\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGrundfos UPS 15-55 SUC\u003c\/strong\u003e is a three-speed, stainless-steel circulator pump designed for hot-water recirculation, radiant heating, and closed-loop systems. With corrosion-resistant construction, quiet performance, and flexible speed control, it ensures dependable flow and long service life in both residential and light-commercial applications. \u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree-speed motor\u003c\/strong\u003e for precise system balancing and performance optimization\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless-steel housing\u003c\/strong\u003e for potable-water and high-corrosion environments\u003c\/li\u003e\n\u003cli\u003eMaintenance-free, wet-rotor motor with quiet operation\u003c\/li\u003e\n\u003cli\u003eUnion connections for simple installation and service\u003c\/li\u003e\n\u003cli\u003eThermal protection and overload safety for long-term reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDomestic hot-water recirculation\u003c\/li\u003e\n\u003cli\u003eRadiant floor and baseboard heating systems\u003c\/li\u003e\n\u003cli\u003eCooling and air-conditioning loops\u003c\/li\u003e\n\u003cli\u003ePotable-water circulation and closed-loop systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width: 99.9972%; height: 195.898px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"width: 24.3649%; height: 19.5898px;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8978%; height: 19.5898px;\"\u003eUPS 15-55 SUC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"width: 24.3649%; height: 19.5898px;\"\u003e\u003cstrong\u003eItem Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8978%; height: 19.5898px;\"\u003e59896781\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"width: 24.3649%; height: 19.5898px;\"\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8978%; height: 19.5898px;\"\u003e115 V, 60 Hz, single-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"width: 24.3649%; height: 19.5898px;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8978%; height: 19.5898px;\"\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"width: 24.3649%; height: 19.5898px;\"\u003e\u003cstrong\u003eConnection Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8978%; height: 19.5898px;\"\u003eUnion 1-1\/4 in. (Unions sold Separately) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"width: 24.3649%; height: 19.5898px;\"\u003e\u003cstrong\u003eMotor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8978%; height: 19.5898px;\"\u003eWet-rotor, 3-speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"width: 24.3649%; height: 19.5898px;\"\u003e\u003cstrong\u003eMax Flow\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8978%; height: 19.5898px;\"\u003e~22 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"width: 24.3649%; height: 19.5898px;\"\u003e\u003cstrong\u003eMax Head\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8978%; height: 19.5898px;\"\u003e~20 ft (6.1 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1797px;\"\u003e\n\u003ctd style=\"width: 24.3649%; height: 39.1797px;\"\u003e\u003cstrong\u003eLiquid Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 72.8978%; height: 39.1797px;\"\u003e36 °F – 230 °F (2 °C – 110 °C) Note that when equipped with a timer the Max Liquid temperature is 150 °F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdetails class=\"bf-faq\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cdiv class=\"bf-faq-items\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is the UPS 15-55 SUC suitable for drinking-water systems?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — its stainless-steel housing is certified for potable-water use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What’s the difference between SUC and FC models?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The SUC uses stainless-steel and union fittings for potable systems; FC models use cast-iron flanges for hydronic heating.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does it include speed control?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — three selectable speeds provide optimal system balancing and energy savings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can it operate continuously?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Absolutely — it’s rated for 24\/7 continuous duty with low noise and no maintenance. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eEngineered for quiet, efficient circulation — the Grundfos UPS 15-55 SUC delivers stainless-steel performance you can trust for years to come.\u003cbr\u003e\u003cbr\u003e\u003cspan class=\"Box-sc-1z9git-0 cbDscn\"\u003eThis item replaces: \u003c\/span\u003e\u003cspan class=\"ProductPageObsoleteProducts__ProductPageObsoleteProductsProductIds-sc-k9q5jb-1 ihgvAv\"\u003e\u003cstrong\u003e59896225, 59896778, 59896246\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":8998959363,"sku":"59896781","price":636.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/9352\/files\/59896781_front_view.png?v=1760640493"},{"product_id":"grundfos-3-4-inch-half-union-threaded-end-pair","title":"Grundfos 529912 — 3\/4″ Bronze Union Threaded End Pair for UP\/UPS Pumps","description":"\u003ch2\u003eGrundfos 529912 — 3\/4″ Bronze Union Threaded End Pair\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGrundfos 529912\u003c\/strong\u003e fits GU-125 union pumps (UP\/UPS family), providing a reliable connection point with 3\/4″ NPT threaded ends. This pair includes nuts, gaskets, and adapters to make installation or replacement straightforward.\u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePair of bronze half unions compatible with GU-125 union pumps \u003c\/li\u003e\n\u003cli\u003eIncludes nuts, gaskets, and adapters for direct installation \u003c\/li\u003e\n\u003cli\u003e3\/4″ NPT threaded connection ensures broad compatibility \u003c\/li\u003e\n\u003cli\u003eIdeal for use when replacing or upgrading circulator piping\u003c\/li\u003e\n\u003cli\u003eDurable bronze construction resists corrosion and wear\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eReplacement or repair of UP \/ UPS series circulator pump unions\u003c\/li\u003e\n\u003cli\u003eHydronic heating and domestic hot-water systems using GU-125 unions\u003c\/li\u003e\n\u003cli\u003eAny piping system needing detachable union ends for serviceability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number \/ SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e529912\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHalf-Union Threaded End (Pair)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\/4″ NPT \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Union Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGU-125 series \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBronze \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded Items\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 nuts, 2 gaskets, adapters \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdetails class=\"bf-faq\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cdiv class=\"bf-faq-items\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this fit my UP15-29 SU circulator pump?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — it’s compatible with GU-125 unions used on many UP \/ UPS models. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does it come with gaskets?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — the set includes gaskets, nuts, and adapters. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can it be used on a different size union?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Only if your pump uses the same GU-125 standard and you confirm dimensions match.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA dependable bronze union pair for service, repair, or replacement — keep your circulator connections solid and serviceable.\u003c\/em\u003e\u003c\/p\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":43101180419,"sku":"529912","price":40.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/9352\/products\/mechanical-grundfos-3-4-inch-half-union-threaded-end-pair-1.jpg?v=1571439530"},{"product_id":"grundfos-519601-3-4-inch-gf-15-26-cast-iron-flange-set","title":"Grundfos 519601 — 3\/4″ Cast Iron GF15\/26 Flange Set for UP\/UPS Circulators","description":"\u003ch2\u003eGrundfos 519601 — 3\/4″ GF15\/26 Cast Iron Flange Set\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGrundfos 519601\u003c\/strong\u003e is a durable cast-iron flange set designed for use with the GF15\/26 connection standard on UP and UPS circulator pumps. It provides a secure and serviceable connection point in hydronic systems. \u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible with \u003cstrong\u003eVersaFlo UP \/ UPS\u003c\/strong\u003e circulator pump series \u003c\/li\u003e\n\u003cli\u003eConnects to \u003cstrong\u003e3\/4″ NPT pipe\u003c\/strong\u003e for standard plumbing compatibility \u003c\/li\u003e\n\u003cli\u003eSet includes: \u003cstrong\u003e2 flanges, 2 gaskets, 2 bolts \u0026amp; nuts\u003c\/strong\u003e for complete installation \u003c\/li\u003e\n\u003cli\u003eThreaded fitting design for secure, leak-resistant mounting \u003c\/li\u003e\n\u003cli\u003eStrong cast-iron construction for long-term reliability \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHydronic heating systems using UP \/ UPS circulator pumps\u003c\/li\u003e\n\u003cli\u003eReplacement or upgrade of older flange or union connections\u003c\/li\u003e\n\u003cli\u003eSystems where a removable flange connection is desired for maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number \/ SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e519601\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlange Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGF15\/26 cast iron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePipe Connection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\/4″ NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 flanges, 2 gaskets, 2 bolts with nuts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Pumps\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGrundfos UP \/ UPS family models using GF15\/26 mounting \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCast Iron \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdetails open=\"\" class=\"bf-faq\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cdiv class=\"bf-faq-items\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this flange set work with my UP15-58 FC pump?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — it’s compatible with many UP\/UPS models that use the GF15\/26 mounting standard. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Are the gaskets reusable?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Gaskets are included. Reuse depends on condition — better to replace if worn or deformed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does it include hardware?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — bolts and nuts are included for full installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/details\u003e\n\u003cp\u003e\u003cem\u003eA reliable, cast-iron flange set that gives your pump connection strength, serviceability, and compatibility with standard 3\/4″ NPT plumbing.\u003c\/em\u003e\u003c\/p\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":19692175949920,"sku":"519601","price":20.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/9352\/files\/519601_Flanges.png?v=1760642917"},{"product_id":"grundfos-gtk03-pump-kit-for-sensei-rinnias","title":"Rinnai \/ Grundfos GTK03U — Circ-Logic™ External Pump Kit (115 V) w\/ Union Connections","description":"\u003ch2\u003eRinnai \/ Grundfos GTK03U Pump Kit — Smart Recirculation with Circ-Logic™\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGTK03U Pump Kit\u003c\/strong\u003e enables hot water recirculation using Rinnai’s Circ-Logic™ technology on tankless water heaters lacking built-in pumps. It includes a \u003cstrong\u003eGrundfos 15-55 pump\u003c\/strong\u003e with an internal check valve, prewired conduit, and flange kit, allowing you to enjoy “instant hot water” without needing a dedicated return line. \u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEnables \u003cstrong\u003eCirc-Logic™ recirculation\u003c\/strong\u003e on compatible Rinnai models (VC, KB, Sensei)\u003c\/li\u003e\n\u003cli\u003eIncludes \u003cstrong\u003eGrundfos 15-55 pump\u003c\/strong\u003e with internal check valve\u003c\/li\u003e\n\u003cli\u003ePre-wired conduit with 4A fuse for plug-in setup\u003c\/li\u003e\n\u003cli\u003eFlange \/ union kit for ¾″ piping connections\u003c\/li\u003e\n\u003cli\u003eStainless-steel pump housing resists corrosion\u003c\/li\u003e\n\u003cli\u003eReduces water waste — hot water delivered faster to fixtures\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTankless water heaters without built-in recirculation pumps\u003c\/li\u003e\n\u003cli\u003eRetrofit installations using Circ-Logic™ mode\u003c\/li\u003e\n\u003cli\u003eCrossover loops or dedicated return loops where allowed\u003c\/li\u003e\n\u003cli\u003eHomes seeking to reduce wait time and wasted water\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel \/ SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGTK03U Pump Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePump Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGrundfos 15-55 with check valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlow Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 GPM (nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHead Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e17 ft (5 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Liquid Temp\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e150 °F (65 °C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax System Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e145 PSI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage \/ Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115 V, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.75 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e¾″ flange \/ union\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight (pump + flange kit)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~8.6 lbs (4 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded Kit Items\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePump + internal check valve, 6 ft BX conduit prewired (with 4A fuse), Circ-Logic manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdetails class=\"bf-faq\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cdiv class=\"bf-faq-items\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Which Rinnai heaters support this kit?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Compatible with many VC, KB, and Sensei series models using Circ-Logic mode. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Do I need a return line?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The kit is meant for use in systems with dedicated return lines where possible. Some configurations may be limited by code or manufacturer rules.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can it be used outdoors?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The pump is intended for indoor installation per manufacturer guidelines. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is installation difficult?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e An authorized technician should handle gas, water, and electrical connections for safe and code-compliant installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eWith the GTK03U pump kit, your tankless setup gains responsive hot water delivery, better efficiency, and compatibility with Rinnai’s Circ-Logic platform.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eIf you are installing a GTK03U Kit on one of the following tankless water heater models, follow the instructions in Section 2 in the install Manual:\u003c\/p\u003e\n\u003cp\u003eRU199i\/e\u003cbr\u003eRU180i\/e\u003cbr\u003eRU160i\/e\u003c\/p\u003e\n\u003cp\u003eRU130i\/e\u003cbr\u003eCU199i\/e\u003cbr\u003eCU160i\/e\u003c\/p\u003e\n\u003cp\u003eIf you are installing a GTK03U Kit on one of the following models, follow the instructions in Section 3 \u003cspan data-mce-fragment=\"1\"\u003ein the install Manual:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eRLX94i\u003cbr\u003eRL75i\/e (VC models)\u003cbr\u003eRL94i\/e (VC models)\u003cbr\u003eRU98i\/RUC98i and RU98e (KB models)\u003cbr\u003eRU80i\/RUC80i and RU80e (KB models)\u003c\/p\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":28392583200864,"sku":"GTK03U","price":500.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/9352\/files\/GTK03U_front_view.png?v=1760641529"},{"product_id":"3-speed-grundfos-pump-hot-water-circulator-pump-model-ups15-58fc-115v","title":"Grundfos UPS 15-58 FC — 59896341  3-Speed Circulator Pump for Heating and Cooling","description":"\u003ch2\u003eGrundfos UPS 15-58 FC (59896341) — 3-Speed Circulator Pump\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGrundfos 59896341\u003c\/strong\u003e is a 3-speed, cast-iron circulator pump designed for both heating and cooling systems. Ideal for residential and light commercial use, this reliable circulator delivers quiet operation, flexibility, and long-term efficiency. \u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree-speed motor\u003c\/strong\u003e for performance flexibility and system balancing\u003c\/li\u003e\n\u003cli\u003eQuiet operation ideal for residential and small commercial systems\u003c\/li\u003e\n\u003cli\u003eBuilt-in check valve and durable cast-iron construction\u003c\/li\u003e\n\u003cli\u003eMaintenance-free wet-rotor design\u003c\/li\u003e\n\u003cli\u003eFlanged connections for quick and simple installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHydronic heating systems\u003c\/li\u003e\n\u003cli\u003eRadiant floor heating and fan-coil loops\u003c\/li\u003e\n\u003cli\u003eDomestic hot-water recirculation (closed-loop systems)\u003c\/li\u003e\n\u003cli\u003eSnow Melt\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUPS 15-58 FC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e59896341\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115 V, 60 Hz, single-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCast-iron housing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnections\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlanged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMotor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-speed wet-rotor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Head\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~19 ft (5.8 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Flow\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~17 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdetails class=\"bf-faq\" open=\"\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cdiv class=\"bf-faq-items\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What systems is this circulator best for?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The UPS 15-58 FC is commonly used in hydronic heating loops, radiant floor systems, and closed-loop cooling circuits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this model include a built-in check valve?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — the FC (flanged check) version includes a factory-installed internal check valve.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can it run continuously?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — it’s designed for continuous operation in residential and light commercial environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is the pump speed adjustable?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — select from three speed settings to match system requirements and optimize flow.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eReliable, quiet, and easy to install — the Grundfos UPS 15-58 FC delivers proven performance for your hydronic or cooling system.\u003cbr\u003e\u003cbr\u003e\u003cspan class=\"Box-sc-1z9git-0 cbDscn\"\u003eThis item replaces: \u003c\/span\u003e\u003cspan class=\"ProductPageObsoleteProducts__ProductPageObsoleteProductsProductIds-sc-k9q5jb-1 ihgvAv\"\u003e\u003cstrong\u003eHMCIR01, 59896248, 59896178, 8056173, 59896155\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":30262173859936,"sku":"59896341","price":173.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/9352\/files\/59896341.png?v=1760637931"},{"product_id":"grundfos-59896775-up15-29su-circulator-pump-1-12-hp-115v","title":"Grundfos UP 15-29 SU — 59896775  Stainless Steel Circulator Pump","description":"\u003ch3\u003eGrundfos UP 15-29 SU (59896775) — Stainless Steel Hot Water Recirculation Pump\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eGrundfos UP 15-29 SU\u003c\/strong\u003e is a high-efficiency stainless-steel circulator pump built for continuous operation in domestic hot-water recirculation systems. Its corrosion-resistant housing makes it ideal for potable water, while the quiet, maintenance-free motor ensures reliable comfort and energy savings. \u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless-steel pump housing\u003c\/strong\u003e — approved for potable water applications\u003c\/li\u003e\n\u003cli\u003eQuiet, maintenance-free wet-rotor motor for long service life\u003c\/li\u003e\n\u003cli\u003eEnergy-efficient design reduces power consumption\u003c\/li\u003e\n\u003cli\u003eBuilt-in thermal protection prevents motor damage\u003c\/li\u003e\n\u003cli\u003eUnion connections for quick and easy installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDomestic hot-water recirculation systems\u003c\/li\u003e\n\u003cli\u003ePotable water loops in residential or light commercial buildings\u003c\/li\u003e\n\u003cli\u003eClosed-loop heating or cooling systems requiring stainless components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUP 15-29 SU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e59896775\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115 V, 60 Hz, single-phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStainless steel (304)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnection Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUnion 1-1\/4 in. (Union Fitting Sold Separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Flow\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 20 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Head\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 9 ft (2.7 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLiquid Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e36 °F – 230 °F (2 °C – 110 °C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdetails class=\"bf-faq\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cdiv class=\"bf-faq-items\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is the UP 15-29 SU safe for drinking water?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — its stainless-steel housing is certified for potable water use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this model require maintenance?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No — it uses a sealed, wet-rotor design that operates silently without lubrication or service.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can it run continuously?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, the motor is rated for continuous duty in domestic recirculation systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What is the difference between the SU and B models?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The SU features stainless-steel construction for potable water, while B models use bronze for non-potable loops.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eCompact, quiet, and built to last — the Grundfos UP 15-29 SU delivers dependable performance for residential hot-water recirculation systems.\u003cbr\u003e\u003cbr\u003e\u003cspan class=\"Box-sc-1z9git-0 cbDscn\"\u003eThis item replaces: \u003c\/span\u003e\u003cspan class=\"ProductPageObsoleteProducts__ProductPageObsoleteProductsProductIds-sc-k9q5jb-1 ihgvAv\"\u003e\u003cstrong\u003e59896127\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":38115385704620,"sku":"59896775","price":398.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/9352\/files\/59896775_front_view.png?v=1760639410"},{"product_id":"grundfos-scala1-3-45","title":"Grundfos SCALA1 3-45 — 99631742 Water Booster Pump 115V","description":"\u003ch2\u003eGrundfos SCALA1 3-45 (99631742) — 115V Self-Priming All-in-One Booster Pump\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGrundfos SCALA1 3-45 (115V)\u003c\/strong\u003e integrates pump, sensor, motor, controller, and tank in a single compact unit. Designed for residential pressure boosting, shallow well supply, or tank-fed systems, it delivers around 14.9 GPM at a maximum head of ~150.9 ft.  With built-in Bluetooth connectivity, diagnostics, and protection features, it’s a smart, streamlined solution. \u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCompact, integrated design — pump, motor, electronics \u0026amp; tank combined\u003c\/li\u003e\n\u003cli\u003eSelf-priming capability (pumps from depths up to ~26 ft) \u003c\/li\u003e\n\u003cli\u003eBluetooth enabled — configure and monitor via Grundfos GO app\u003c\/li\u003e\n\u003cli\u003eTwin mode support (duty\/standby) with optional kit \u003c\/li\u003e\n\u003cli\u003eSelectable suction modes: tank lift, positive pressure (city supply), and air purge mode\u003c\/li\u003e\n\u003cli\u003eBuilt-in check valves to prevent backflow\u003c\/li\u003e\n\u003cli\u003eOver-pressure and dry-run protection, anti-cycling feature \u003c\/li\u003e\n\u003cli\u003eQuiet, water-cooled motor design, enclosed composite housing \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eResidential pressure boost where city pressure is weak\u003c\/li\u003e\n\u003cli\u003eTank to house water supply\u003c\/li\u003e\n\u003cli\u003eShallow well water systems\u003c\/li\u003e\n\u003cli\u003eRainwater harvesting \/ cistern boosting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width: 99.9972%; height: 175.308px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 18.5898px;\"\u003e\n\u003ctd style=\"width: 26.5428%; height: 18.5898px;\"\u003e\u003cstrong\u003eModel \/ Variant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.72%; height: 18.5898px;\"\u003eSCALA1 3-45 (99631742)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"width: 26.5428%; height: 19.5898px;\"\u003e\u003cstrong\u003eRated Flow\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.72%; height: 19.5898px;\"\u003e14.9 GPM \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"width: 26.5428%; height: 19.5898px;\"\u003e\u003cstrong\u003eMax Head\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.72%; height: 19.5898px;\"\u003e150.9 ft (46 m) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"width: 26.5428%; height: 19.5898px;\"\u003e\u003cstrong\u003eVoltage \/ Phase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.72%; height: 19.5898px;\"\u003e115 V, Single-phase \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"width: 26.5428%; height: 19.5898px;\"\u003e\u003cstrong\u003ePower \/ Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.72%; height: 19.5898px;\"\u003e950 W \/ 8.62 A \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"width: 26.5428%; height: 19.5898px;\"\u003e\u003cstrong\u003eMax System Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.72%; height: 19.5898px;\"\u003e116 psi (8 bar) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"width: 26.5428%; height: 19.5898px;\"\u003e\u003cstrong\u003eMax Inlet Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.72%; height: 19.5898px;\"\u003e43.5 psi (3 bar) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"width: 26.5428%; height: 19.5898px;\"\u003e\u003cstrong\u003eSuction Lift\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.72%; height: 19.5898px;\"\u003e~26 ft (8 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5898px;\"\u003e\n\u003ctd style=\"width: 26.5428%; height: 19.5898px;\"\u003e\u003cstrong\u003eInlet \/ Outlet Ports\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.72%; height: 19.5898px;\"\u003e1″ NPT \/ 1″ NPT \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdetails open=\"\" class=\"bf-faq\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cdiv class=\"bf-faq-items\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What is the maximum suction lift?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e About 26 ft (8 m), assuming proper priming and airtight suction plumbing. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will the pump shut off if it runs dry?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — the built-in dry-run protection stops operation to prevent damage. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does it have multiple suction modes?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — manual switching between tank lift (low suction), positive inlet pressure, and air-purge mode. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How is Bluetooth used?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Connect via the Grundfos GO app to configure settings, review diagnostics, and monitor performance. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003e\u003cem\u003eA sleek, powerful 115V booster pump for homes needing compact, smart pressure control with no extra hardware.\u003cbr\u003e\u003cbr\u003e\u003cspan class=\"Box-sc-1z9git-0 cbDscn\"\u003eThis item replaces: \u003c\/span\u003e\u003cspan class=\"ProductPageObsoleteProducts__ProductPageObsoleteProductsProductIds-sc-k9q5jb-1 ihgvAv\"\u003e\u003cstrong\u003e96860172\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eCompare Grundfos SCALA1 Booster Pump Models\u003c\/h2\u003e\n\u003ctable class=\"bf-compare\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003cth\u003eFlow Range (GPM)\u003c\/th\u003e\n\u003cth\u003eMax Head (m \/ ft)\u003c\/th\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003cth\u003eConnectivity\u003c\/th\u003e\n\u003cth\u003eKey Use Case\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSCALA1 3-45 (99631736)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e230 V\u003c\/td\u003e\n\u003ctd\u003eUp to ≈ 14 GPM\u003c\/td\u003e\n\u003ctd\u003e≈ 45 m \/ 148 ft\u003c\/td\u003e\n\u003ctd\u003eSelf-priming\u003c\/td\u003e\n\u003ctd\u003eBluetooth via Grundfos GO app\u003c\/td\u003e\n\u003ctd\u003eGeneral residential boosting (230 V supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSCALA1 3-45 (99631742)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115 V\u003c\/td\u003e\n\u003ctd\u003eUp to ≈ 14 GPM\u003c\/td\u003e\n\u003ctd\u003e≈ 45 m \/ 148 ft\u003c\/td\u003e\n\u003ctd\u003eSelf-priming\u003c\/td\u003e\n\u003ctd\u003eBluetooth via Grundfos GO app\u003c\/td\u003e\n\u003ctd\u003eHomes with standard 115 V circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSCALA1 5-55 (99631739)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e230 V\u003c\/td\u003e\n\u003ctd\u003eUp to ≈ 18 GPM\u003c\/td\u003e\n\u003ctd\u003e≈ 55 m \/ 180 ft\u003c\/td\u003e\n\u003ctd\u003eHigh-head, self-priming\u003c\/td\u003e\n\u003ctd\u003eBluetooth via Grundfos GO app\u003c\/td\u003e\n\u003ctd\u003eMulti-story homes \/ longer pipe runs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSCALA1 5-55 (99631754)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115 V\u003c\/td\u003e\n\u003ctd\u003eUp to ≈ 18 GPM\u003c\/td\u003e\n\u003ctd\u003e≈ 55 m \/ 180 ft\u003c\/td\u003e\n\u003ctd\u003eHigh-head, self-priming\u003c\/td\u003e\n\u003ctd\u003eBluetooth via Grundfos GO app\u003c\/td\u003e\n\u003ctd\u003eHigh-performance boosting on 115 V supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAll SCALA1 boosters share the same smart, compact design — just choose your voltage and performance level for the perfect household pressure solution\u003c\/em\u003e\u003c\/p\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":40674891956396,"sku":"99631742","price":821.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/9352\/files\/Scala1_Front_View.png?v=1760630302"},{"product_id":"grundfos-scala1-5-55","title":"Grundfos SCALA1 5-55 — 99631754 Water Booster Pump  115V","description":"\u003ch2\u003eGrundfos SCALA1 5-55 (99631754) — 115V High-Head Booster Pump\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGrundfos SCALA1 5-55 at 115V\u003c\/strong\u003e brings full smart booster pumping performance to households powered by standard 115V circuits. It integrates pump, motor, pressure sensor, control electronics, and a small buffer tank in a fully sealed package, offering up to ~5 to 55 GPM and strong head capacity. Bluetooth connectivity, diagnostics, and protection features make it an intelligent pick for pressure boosting. )\u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e115V motor option for circuits without 230V availability\u003c\/li\u003e\n\u003cli\u003eIntegrated, self-priming booster system with minimal external parts\u003c\/li\u003e\n\u003cli\u003eHigh performance: up to ~55 GPM\/45 m head (depending on conditions)\u003c\/li\u003e\n\u003cli\u003eBluetooth-enabled control and monitoring via Grundfos GO\u003c\/li\u003e\n\u003cli\u003eProtection built in: dry-run, lock-up, overload detection\u003c\/li\u003e\n\u003cli\u003eQuiet operation (~55 dB) in sealed IP6X housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eResidential pressure boosting on 115V supply\u003c\/li\u003e\n\u003cli\u003eTank-to-home setups and weak municipal pressure cases\u003c\/li\u003e\n\u003cli\u003eLow-to-mid elevation irrigation circuits\u003c\/li\u003e\n\u003cli\u003eBackup or remote installations where 230V isn't available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel \/ Variant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCALA1 5-55 (99631754)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlow Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 – 55 GPM (varies by system conditions)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Head\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~ 147 ft \/ ~45 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage \/ Phase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115 V, Single Phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMotor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBrushless DC, variable-speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection \u0026amp; Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSealed, built-in diagnostics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSound Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~55 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdetails class=\"bf-faq\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cdiv class=\"bf-faq-items\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Why 115V vs 230V version?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Use this variant when your site only has 115V supply or to avoid rewiring to 230V.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can it maintain pressure with multiple taps open?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — its variable-speed control adjusts output to sustain pressure under varying loads.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What protections are included?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Dry-run, lock-up, overload, diagnostics, and motor protection are built in.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is 115V less efficient?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Efficiency differences are minimal; performance per curve remains largely the same as long as application conditions are within spec.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eSCALA1 5-55 at 115V delivers high head and smart booster performance for systems constrained to standard voltage supply.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eCompare Grundfos SCALA1 Booster Pump Models\u003c\/h2\u003e\n\u003ctable class=\"bf-compare\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003cth\u003eFlow Range (GPM)\u003c\/th\u003e\n\u003cth\u003eMax Head (m \/ ft)\u003c\/th\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003cth\u003eConnectivity\u003c\/th\u003e\n\u003cth\u003eKey Use Case\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSCALA1 3-45 (99631736)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e230 V\u003c\/td\u003e\n\u003ctd\u003eUp to ≈ 14 GPM\u003c\/td\u003e\n\u003ctd\u003e≈ 45 m \/ 148 ft\u003c\/td\u003e\n\u003ctd\u003eSelf-priming\u003c\/td\u003e\n\u003ctd\u003eBluetooth via Grundfos GO app\u003c\/td\u003e\n\u003ctd\u003eGeneral residential boosting (230 V supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSCALA1 3-45 (99631742)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115 V\u003c\/td\u003e\n\u003ctd\u003eUp to ≈ 14 GPM\u003c\/td\u003e\n\u003ctd\u003e≈ 45 m \/ 148 ft\u003c\/td\u003e\n\u003ctd\u003eSelf-priming\u003c\/td\u003e\n\u003ctd\u003eBluetooth via Grundfos GO app\u003c\/td\u003e\n\u003ctd\u003eHomes with standard 115 V circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSCALA1 5-55 (99631739)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e230 V\u003c\/td\u003e\n\u003ctd\u003eUp to ≈ 18 GPM\u003c\/td\u003e\n\u003ctd\u003e≈ 55 m \/ 180 ft\u003c\/td\u003e\n\u003ctd\u003eHigh-head, self-priming\u003c\/td\u003e\n\u003ctd\u003eBluetooth via Grundfos GO app\u003c\/td\u003e\n\u003ctd\u003eMulti-story homes \/ longer pipe runs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSCALA1 5-55 (99631754)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115 V\u003c\/td\u003e\n\u003ctd\u003eUp to ≈ 18 GPM\u003c\/td\u003e\n\u003ctd\u003e≈ 55 m \/ 180 ft\u003c\/td\u003e\n\u003ctd\u003eHigh-head, self-priming\u003c\/td\u003e\n\u003ctd\u003eBluetooth via Grundfos GO app\u003c\/td\u003e\n\u003ctd\u003eHigh-performance boosting on 115 V supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAll SCALA1 boosters share the same smart, compact design — just choose your voltage and performance level for the perfect household pressure solution\u003c\/em\u003e\u003c\/p\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":40674999828652,"sku":"99631754","price":991.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/9352\/files\/Scala1_Front_View.png?v=1760630302"},{"product_id":"grundfos-scala1-5-55-nema-6-15-plug-230v","title":"Grundfos SCALA1 5-55 — 99631739 Water Booster Pump 230V","description":"\u003ch2\u003eGrundfos SCALA1 5-55 (99631739) — All-in-One High Head Booster Pump\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGrundfos SCALA1 5-55\u003c\/strong\u003e is a powerful, compact booster pump system combining pump, motor, control, sensor, and tank into a single unit. Designed to deliver higher head and stronger flow, this variant suits homes or systems with tougher pressure needs. Its built-in smart diagnostics and Bluetooth connectivity add ease and control to your installation.\u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrated all-in-one design — no external control or parts\u003c\/li\u003e\n\u003cli\u003eHigh-output variant: up to 5–55 GPM and increased head capacity\u003c\/li\u003e\n\u003cli\u003eSelf-priming capability for tank-to-home use\u003c\/li\u003e\n\u003cli\u003eBluetooth support for monitoring and configuration via Grundfos GO app\u003c\/li\u003e\n\u003cli\u003eSmart protection: dry-run, overload, diagnostics, and auto safeguard modes\u003c\/li\u003e\n\u003cli\u003eQuiet operation and sealed design (IP6X) — no exposed electronics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePressure boosting in multi-story homes or challenging plumbing layouts\u003c\/li\u003e\n\u003cli\u003eOvercoming low city water pressure\u003c\/li\u003e\n\u003cli\u003eTank-fed systems or rainwater boosting\u003c\/li\u003e\n\u003cli\u003eSmall irrigation or landscape circuits with higher elevation lift\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel \/ Variant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCALA1 5-55 (99631739)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlow Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 – 55 GPM (range varies by system conditions)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Head\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~ 180 ft (55 m) (consult variant curves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage \/ Phase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e230 V, Single Phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMotor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBrushless DC speed-controlled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure \/ Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSealed (IP6X), built-in diagnostics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNoise Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 55 dB under normal conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdetails class=\"bf-faq\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cdiv class=\"bf-faq-items\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What makes “5-55” different from “3-45”?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The “5-55” variant is designed to deliver higher head and greater flow under challenging plumbing conditions, while maintaining the smart integrated features of SCALA1.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I use this inside the house?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — it’s quiet (≈55 dB) and sealed, making it suitable for indoor installations if ventilation and access are acceptable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What protections are included?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Dry-run protection, overload headroom, lock-up protections, plus internal diagnostics via Bluetooth.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How do I configure pressure setpoints?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Use the Grundfos GO app via Bluetooth to adjust setpoints, operation modes, and review performance logs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe SCALA1 5-55 combines smart pumping with serious head and flow capability — perfect for demanding residential or light commercial setups.\u003cbr\u003e\u003cbr\u003e\u003cspan class=\"Box-sc-1z9git-0 cbDscn\"\u003eThis item replaces: \u003c\/span\u003e\u003cspan class=\"ProductPageObsoleteProducts__ProductPageObsoleteProductsProductIds-sc-k9q5jb-1 ihgvAv\"\u003e\u003cstrong\u003e97855091\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eCompare Grundfos SCALA1 Booster Pump Models\u003c\/h2\u003e\n\u003ctable class=\"bf-compare\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003cth\u003eFlow Range (GPM)\u003c\/th\u003e\n\u003cth\u003eMax Head (m \/ ft)\u003c\/th\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003cth\u003eConnectivity\u003c\/th\u003e\n\u003cth\u003eKey Use Case\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSCALA1 3-45 (99631736)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e230 V\u003c\/td\u003e\n\u003ctd\u003eUp to ≈ 14 GPM\u003c\/td\u003e\n\u003ctd\u003e≈ 45 m \/ 148 ft\u003c\/td\u003e\n\u003ctd\u003eSelf-priming\u003c\/td\u003e\n\u003ctd\u003eBluetooth via Grundfos GO app\u003c\/td\u003e\n\u003ctd\u003eGeneral residential boosting (230 V supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSCALA1 3-45 (99631742)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115 V\u003c\/td\u003e\n\u003ctd\u003eUp to ≈ 14 GPM\u003c\/td\u003e\n\u003ctd\u003e≈ 45 m \/ 148 ft\u003c\/td\u003e\n\u003ctd\u003eSelf-priming\u003c\/td\u003e\n\u003ctd\u003eBluetooth via Grundfos GO app\u003c\/td\u003e\n\u003ctd\u003eHomes with standard 115 V circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSCALA1 5-55 (99631739)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e230 V\u003c\/td\u003e\n\u003ctd\u003eUp to ≈ 18 GPM\u003c\/td\u003e\n\u003ctd\u003e≈ 55 m \/ 180 ft\u003c\/td\u003e\n\u003ctd\u003eHigh-head, self-priming\u003c\/td\u003e\n\u003ctd\u003eBluetooth via Grundfos GO app\u003c\/td\u003e\n\u003ctd\u003eMulti-story homes \/ longer pipe runs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSCALA1 5-55 (99631754)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115 V\u003c\/td\u003e\n\u003ctd\u003eUp to ≈ 18 GPM\u003c\/td\u003e\n\u003ctd\u003e≈ 55 m \/ 180 ft\u003c\/td\u003e\n\u003ctd\u003eHigh-head, self-priming\u003c\/td\u003e\n\u003ctd\u003eBluetooth via Grundfos GO app\u003c\/td\u003e\n\u003ctd\u003eHigh-performance boosting on 115 V supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAll SCALA1 boosters share the same smart, compact design — just choose your voltage and performance level for the perfect household pressure solution\u003c\/em\u003e\u003c\/p\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":40675009691820,"sku":"99631739","price":991.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/9352\/files\/Scala1_Front_View.png?v=1760630302"},{"product_id":"grundfos-scala1-3-45-nema-6-15-plug-230v","title":"Grundfos SCALA1 3-45 — 99631736  Water Booster Pump 230V","description":"\u003ch2\u003eGrundfos SCALA1 3-45 (99631736) — Self-Priming All-in-One Booster Pump\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGrundfos SCALA1 3-45\u003c\/strong\u003e is a sleek, integrated booster pump system combining motor, pump, sensor, controller, and tank into one composite enclosure. Designed for residential pressure boosting and tank-fed systems, it delivers ~14 GPM and up to 147 ft head, with smart features like Bluetooth connectivity and built-in protections. \u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCompact, all-in-one design — minimal footprint and wiring\u003c\/li\u003e\n\u003cli\u003eSelf-priming capability (can lift from depths up to ~8 m) \u003c\/li\u003e\n\u003cli\u003eBluetooth connectivity for monitoring \u0026amp; configuration via Grundfos GO app \u003c\/li\u003e\n\u003cli\u003eBuilt-in protections: dry-run shutoff, cycling protection, max runtime, motor overload \u003c\/li\u003e\n\u003cli\u003eQuiet operation around 55 dB \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eResidential homes and apartments\u003c\/li\u003e\n\u003cli\u003ePressure boosting for weak municipal supply\u003c\/li\u003e\n\u003cli\u003eGarden irrigation and tank-to-home supply\u003c\/li\u003e\n\u003cli\u003eRainwater harvesting systems (boost from tank)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel \/ Variant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCALA1 3-45 (99631736)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Flow\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~14 GPM (US) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Head\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e147.6 ft (45 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Voltage \/ Phase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e230 V, Single-phase \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWorking Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e116 psi (8 bar) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Inlet Pressure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e43.5 psi (3 bar) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNoise Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~55 dB \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdetails class=\"bf-faq\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cdiv class=\"bf-faq-items\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How deep can it self-prime?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Up to ~8 m (≈ 26 ft), with proper priming procedure and airtight suction line. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does it need a control box or external parts?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No — it’s an integrated system. All components are built into the one unit. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I monitor it via smartphone?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — built-in Bluetooth enables communication with Grundfos GO app for monitoring and settings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is it quiet enough for indoor installation?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — it’s rated around 55 dB, which is acceptable for many indoor or near-living-space installs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eSCALA1 3-45 gives you compact, smart pressure boosting with built-in protections and minimal setup — ideal for homes that demand no-fuss performance.\u003cbr\u003e\u003cbr\u003e\u003cspan class=\"Box-sc-1z9git-0 cbDscn\"\u003eThis item replaces: \u003c\/span\u003e\u003cspan class=\"ProductPageObsoleteProducts__ProductPageObsoleteProductsProductIds-sc-k9q5jb-1 ihgvAv\"\u003e\u003cstrong\u003e96860201, 96860207\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eCompare Grundfos SCALA1 Booster Pump Models\u003c\/h2\u003e\n\u003ctable class=\"bf-compare\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003cth\u003eFlow Range (GPM)\u003c\/th\u003e\n\u003cth\u003eMax Head (m \/ ft)\u003c\/th\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003cth\u003eConnectivity\u003c\/th\u003e\n\u003cth\u003eKey Use Case\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSCALA1 3-45 (99631736)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e230 V\u003c\/td\u003e\n\u003ctd\u003eUp to ≈ 14 GPM\u003c\/td\u003e\n\u003ctd\u003e≈ 45 m \/ 148 ft\u003c\/td\u003e\n\u003ctd\u003eSelf-priming\u003c\/td\u003e\n\u003ctd\u003eBluetooth via Grundfos GO app\u003c\/td\u003e\n\u003ctd\u003eGeneral residential boosting (230 V supply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSCALA1 3-45 (99631742)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115 V\u003c\/td\u003e\n\u003ctd\u003eUp to ≈ 14 GPM\u003c\/td\u003e\n\u003ctd\u003e≈ 45 m \/ 148 ft\u003c\/td\u003e\n\u003ctd\u003eSelf-priming\u003c\/td\u003e\n\u003ctd\u003eBluetooth via Grundfos GO app\u003c\/td\u003e\n\u003ctd\u003eHomes with standard 115 V circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSCALA1 5-55 (99631739)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e230 V\u003c\/td\u003e\n\u003ctd\u003eUp to ≈ 18 GPM\u003c\/td\u003e\n\u003ctd\u003e≈ 55 m \/ 180 ft\u003c\/td\u003e\n\u003ctd\u003eHigh-head, self-priming\u003c\/td\u003e\n\u003ctd\u003eBluetooth via Grundfos GO app\u003c\/td\u003e\n\u003ctd\u003eMulti-story homes \/ longer pipe runs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSCALA1 5-55 (99631754)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e115 V\u003c\/td\u003e\n\u003ctd\u003eUp to ≈ 18 GPM\u003c\/td\u003e\n\u003ctd\u003e≈ 55 m \/ 180 ft\u003c\/td\u003e\n\u003ctd\u003eHigh-head, self-priming\u003c\/td\u003e\n\u003ctd\u003eBluetooth via Grundfos GO app\u003c\/td\u003e\n\u003ctd\u003eHigh-performance boosting on 115 V supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eAll SCALA1 boosters share the same smart, compact design — just choose your voltage and performance level for the perfect household pressure solution\u003c\/em\u003e\u003c\/p\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":40675018277036,"sku":"99631736","price":852.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/9352\/files\/Scala1_Front_View.png?v=1760630302"},{"product_id":"grundfos-inlet-filter","title":"Grundfos Inlet Filter (99725185) — Protects Pumps from Sand and Debris","description":"\u003ch2\u003eGrundfos Inlet Filter (99725185) — Pump Protection for Rainwater and Well Applications\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGrundfos Inlet Filter\u003c\/strong\u003e is a recommended accessory designed to safeguard your pump from damage caused by sand, gravel, or other suspended particles commonly found in rainwater or well water. This durable filter maintains steady performance while ensuring simple maintenance and long service life. \u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProtects pumps from sand, gravel, and debris contamination\u003c\/li\u003e\n\u003cli\u003eUniform flow across the full filter surface reduces clogging risk\u003c\/li\u003e\n\u003cli\u003eSmooth, easy-to-clean surface for fast maintenance\u003c\/li\u003e\n\u003cli\u003eNominal 80% filtration efficiency for consistent protection\u003c\/li\u003e\n\u003cli\u003eDurable construction for repeated use and long service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eConstruction Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCore Material:\u003c\/strong\u003e Talc-filled polypropylene for structural strength\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Media:\u003c\/strong\u003e Welded nylon mesh for precision filtration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Square-mesh cartridge allows uniform flow and minimizes clogging\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRainwater harvesting systems\u003c\/li\u003e\n\u003cli\u003eWell and borehole water installations\u003c\/li\u003e\n\u003cli\u003ePre-filtration for Grundfos SCALA1, SCALA2, and other booster systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdetails class=\"bf-faq\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cdiv class=\"bf-faq-items\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How often should I clean the filter?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Cleaning intervals depend on water quality, but the smooth nylon surface allows for quick rinsing and reuse.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can this filter be used with well water?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — it’s ideal for both rainwater and well applications where sediment or grit may enter the pump.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What is the filtration rating?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The inlet filter provides nominal 80% filtration efficiency for reliable debris protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eDurable, efficient, and easy to maintain — the Grundfos Inlet Filter keeps your pump protected and performing at its best.\u003c\/em\u003e\u003c\/p\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":40675795009708,"sku":"99725185","price":77.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/9352\/products\/Grundfos_Inlet_Filter.jpg?v=1760636225"},{"product_id":"grundfos-scala2-3-45-93013250-single-phase-us-plug-230v","title":"Grundfos Scala2 93013250 — Compact Water Booster Pump 208-230V","description":"\u003ch2\u003eGrundfos Scala2 93013250 — W\u003cspan\u003eater Pressure Booster Pump \u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGrundfos Scala2 93013250\u003c\/strong\u003e combines pump, motor, sensor, controller, and tank into one compact, sealed system. With onboard intelligence and variable-speed control, it maintains constant pressure even when demand shifts — all with ultra-quiet operation and energy efficiency.\u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated all-in-one system\u003c\/strong\u003e — pump, motor, controller, sensor \u0026amp; tank in a compact form\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable-speed motor\u003c\/strong\u003e maintains constant pressure regardless of flow rate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet operation\u003c\/strong\u003e — typically \u0026lt; 57 dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in diagnostics \u0026amp; protection\u003c\/strong\u003e for dry run, power surges, and lock-up\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP6X sealed enclosure\u003c\/strong\u003e — no exposed electronics\u003c\/li\u003e\n\u003cli\u003eEasy to install — minimal external components or piping changes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCord Length\u003c\/strong\u003e \u003cspan\u003e6.56 ft\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eResidential pressure boosting systems\u003c\/li\u003e\n\u003cli\u003eUpgrading weak municipal water pressure\u003c\/li\u003e\n\u003cli\u003eSmall irrigation or sprinkler zones\u003c\/li\u003e\n\u003cli\u003eTank-to-home water delivery systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel \/ Variant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eScala2 93013250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlow Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 – 45 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Head\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e230 ft (70 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMotor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBrushless DC, variable-speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFully sealed IP6X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSound Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 57 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl \u0026amp; Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDry-run, overload, diagnostics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdetails class=\"bf-faq\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cdiv class=\"bf-faq-items\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How does the Scala2 maintain constant pressure?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e It uses an integrated sensor and variable-speed motor to adjust output and maintain setpoint.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What’s the maximum flow and head?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Up to 45 GPM and 230 ft head, depending on system conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is it noisy?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No — standard operation is under 57 dB, making it quiet enough for most indoor installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What protections are included?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Dry-run detection, overload protection, lock-up protection, motor diagnostics, and internal sealing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe Scala2 93013250 offers a sleek, powerful, and intelligent booster pump experience — perfect when consistent pressure and compact design matter most.\u003cbr\u003e\u003cbr\u003e\u003cspan class=\"Box-sc-1z9git-0 cbDscn\"\u003eThis item replaces: \u003c\/span\u003e\u003cspan class=\"ProductPageObsoleteProducts__ProductPageObsoleteProductsProductIds-sc-k9q5jb-1 ihgvAv\"\u003e\u003cstrong\u003e98562817\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":43421811081388,"sku":"93013250","price":996.93,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/9352\/files\/Scala2.png?v=1760560469"},{"product_id":"grundfos-scala2-3-45-93013251-single-phase-us-plug-115v","title":"Grundfos SCALA2 3-45 — 93013251 Compact Water Booster Pump 115V","description":"\u003ch2\u003eGrundfos SCALA2 3-45 (93013251) W\u003cspan\u003eater Pressure Booster Pump \u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGrundfos SCALA2 3-45 (93013251)\u003c\/strong\u003e integrates pump, motor, sensor, controller, and tank into one sealed unit. With its variable-speed drive, it provides constant water pressure dynamically — adjusting output in real time to changes in demand. Compact, quiet, and fully sealed, it’s ideal for modern pressure-boosting needs. \u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAll-in-one integrated design\u003c\/li\u003e\n\u003cli\u003eVariable-speed control to maintain steady pressure\u003c\/li\u003e\n\u003cli\u003eQuiet operation — typically \u0026lt; 57 dB\u003c\/li\u003e\n\u003cli\u003eBuilt-in diagnostics and dry-run protection\u003c\/li\u003e\n\u003cli\u003eFully sealed electronics (IP6X) — no exposed components\u003c\/li\u003e\n\u003cli\u003eQuick and clean installation with minimal external parts\u003c\/li\u003e\n\u003cli\u003eCord Length \u003cspan\u003e6.56 ft\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eResidential boost systems\u003c\/li\u003e\n\u003cli\u003eOvercoming weak city water pressure\u003c\/li\u003e\n\u003cli\u003eSmall irrigation \/ sprinkler zones\u003c\/li\u003e\n\u003cli\u003eTank-to-home systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel \/ Variant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCALA2 3-45 (93013251)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlow Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 – 45 GPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Head\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e230 ft (70 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMotor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBrushless DC, variable-speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFully sealed IP6X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSound Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 57 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtection \u0026amp; Control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDry-run, overload, diagnostic functions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdetails class=\"bf-faq\"\u003e\n\u003csummary\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cdiv class=\"bf-faq-items\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What’s the difference vs variant 93013250?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The spec curves, housings, or certification tolerances may differ. Always compare performance curves and documentation for your site’s conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will it maintain pressure if multiple fixtures run?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — the variable-speed drive dynamically adjusts to maintain the setpoint under varying loads.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What protections are built in?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Dry-run detection, overload protection, lock-up protection, motor diagnostics, and completely sealed electronics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is it quiet enough for indoor installations?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes — standard noise is under 57 dB, making it suitable for many interior or near-living-space installs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe SCALA2 3-45 is a compact powerhouse — combining smart controls, quiet performance, and pressure stability in one sleek, install-friendly unit.\u003cbr\u003e\u003cbr\u003e\u003cspan class=\"Box-sc-1z9git-0 cbDscn\"\u003eThis item replaces: \u003c\/span\u003e\u003cspan class=\"ProductPageObsoleteProducts__ProductPageObsoleteProductsProductIds-sc-k9q5jb-1 ihgvAv\"\u003e\u003cstrong\u003e98562818, 96860172, 96860195\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":43421815570604,"sku":"93013251","price":953.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/9352\/files\/Scala2.png?v=1760560469"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/9352\/collections\/grundfos.jpg?v=1446154778","url":"https:\/\/www.bigfrogsupply.com\/collections\/grundfos\/brand_grundfos+category_booster-pump+phase_single-phase.oembed","provider":"Big Frog Supply","version":"1.0","type":"link"}