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Enjoy fast and free shipping on all orders over $89! Contact us (855) 424-4376

Recirculating Pumps

Recirculating pumps bring hot water to fixtures faster and keep hydronic loops moving efficiently. Shop potable-water circulators for domestic hot water (DHW), cast-iron pumps for heating, under-sink “comfort” kits for homes without a return line, and smart ECM models that learn usage and save energy.

Shop by need

  • DHW bronze/stainless circulators: potable-rated pumps for dedicated return lines
  • Under-sink retrofit kits: pump + crossover/comfort valve for homes without a return line (uses the cold line as a temporary return)
  • Hydronic heating circulators: cast-iron wet-rotor pumps for radiant/baseboard/boiler loops
  • High-efficiency ECM: variable-speed/auto-adapt models that cut power draw and reduce noise
  • Controls & accessories: timers, temperature sensors/aquastats, check/isolation valves, unions/flanges, replacement cartridges

 

  • Grundfos UP 15-10 SU7PTLC-1 — 595916 Comfort System Hot Water Recirculation Pump

    Grundfos
    Original price $ 321.25 - Original price $ 321.25
    Original price
    $ 321.25
    $ 321.25 - $ 321.25
    Current price $ 321.25

    Grundfos 595916 UP 15-10 Comfort System Recirculation Pump Brand: Grundfos | SKU: 595916 Product Overview The Grundfos 595916 UP 15-10 SU7PTLC...

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    Original price $ 321.25 - Original price $ 321.25
    Original price
    $ 321.25
    $ 321.25 - $ 321.25
    Current price $ 321.25
  • Rinnai / Grundfos GTK03U — Circ-Logic™ External Pump Kit (115 V) w/ Union Connections

    Grundfos
    Original price $ 500.30 - Original price $ 500.30
    Original price
    $ 500.30
    $ 500.30 - $ 500.30
    Current price $ 500.30

    Rinnai / Grundfos GTK03U Circ-Logic External Recirculation Pump Kit Brand: Rinnai / Grundfos | SKU: GTK03U Product Overview The Rinnai / Grund...

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    Original price $ 500.30 - Original price $ 500.30
    Original price
    $ 500.30
    $ 500.30 - $ 500.30
    Current price $ 500.30
  • Grundfos UP 15-29 SU — 59896775 Stainless Steel Circulator Pump

    Grundfos
    Original price $ 398.99 - Original price $ 398.99
    Original price
    $ 398.99
    $ 398.99 - $ 398.99
    Current price $ 398.99

    Grundfos UP 15-29 SU 59896775 Stainless Steel Circulator Pump Brand: Grundfos | SKU: 59896775 Product Overview The Grundfos UP 15-29 SU model ...

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    Original price $ 398.99 - Original price $ 398.99
    Original price
    $ 398.99
    $ 398.99 - $ 398.99
    Current price $ 398.99
  • Grundfos 595926 — Replacement Comfort Valve for UP Comfort Series Circulators

    Grundfos
    Original price $ 87.99 - Original price $ 87.99
    Original price
    $ 87.99
    $ 87.99 - $ 87.99
    Current price $ 87.99

    Grundfos 595926 Replacement Comfort Valve Brand: Grundfos | SKU: 595926 Product Overview The Grundfos 595926 is a replacement Comfort Valve fo...

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    Original price $ 87.99 - Original price $ 87.99
    Original price
    $ 87.99
    $ 87.99 - $ 87.99
    Current price $ 87.99
  • Grundfos UPS 15-58 FC — 59896341 3-Speed Circulator Pump for Heating and Cooling

    Grundfos
    Original price $ 173.15 - Original price $ 173.15
    Original price
    $ 173.15
    $ 173.15 - $ 173.15
    Current price $ 173.15

    Grundfos UPS 15-58 FC 59896341 Three-Speed Cast Iron Circulator Brand: Grundfos | SKU: 59896341 Product Overview The Grundfos UPS 15-58 FC mod...

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    Original price $ 173.15 - Original price $ 173.15
    Original price
    $ 173.15
    $ 173.15 - $ 173.15
    Current price $ 173.15
  • Rinnai - RWMKT01P - Control-R Wireless Demand Recirculation Kit (Pump+Push Button)

    Rinnai
    Original price $ 626.00 - Original price $ 626.00
    Original price
    $ 626.00
    $ 626.00 - $ 626.00
    Current price $ 626.00

    Rinnai Control-R Wi-Fi Module and mobile app no longer are compatible w/ the RUCS/RUS Tankless Water Heaters Rinnai Control-R Kit with Push-Butto...

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    Original price $ 626.00 - Original price $ 626.00
    Original price
    $ 626.00
    $ 626.00 - $ 626.00
    Current price $ 626.00
  • Grundfos - 519651 - 3/4" 15/16 Bronze Flange Set

    Grundfos
    Original price $ 49.12 - Original price $ 49.12
    Original price
    $ 49.12
    $ 49.12 - $ 49.12
    Current price $ 49.12

    Grundfos 519651 3/4 in. Bronze Flange Set Brand: Grundfos | SKU: 519651 Product Overview The Grundfos 519651 is a bronze flange set for connec...

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    Original price $ 49.12 - Original price $ 49.12
    Original price
    $ 49.12
    $ 49.12 - $ 49.12
    Current price $ 49.12
  • Rinnai - RWMKT03P - Control-R Wireless Demand Recirculation Kit (Pump+Push Button,Temp Sensor)

    Rinnai
    Original price $ 806.00 - Original price $ 806.00
    Original price
    $ 806.00
    $ 806.00 - $ 806.00
    Current price $ 806.00

    Rinnai Control-R Wi-Fi Module and mobile app no longer are compatible w/ the RUCS/RUS Tankless Water Heaters Rinnai Control-R Kit with Push-Butto...

    View full details
    Original price $ 806.00 - Original price $ 806.00
    Original price
    $ 806.00
    $ 806.00 - $ 806.00
    Current price $ 806.00
  • Grundfos UPS 15-55 SUC — 59896781 Stainless-Steel Circulator Pump with Union Connections

    Grundfos
    Original price $ 636.99 - Original price $ 636.99
    Original price
    $ 636.99
    $ 636.99 - $ 636.99
    Current price $ 636.99

    Grundfos UPS 15-55 SUC 59896781 Stainless Steel Circulator Pump Brand: Grundfos | SKU: 59896781 Product Overview The Grundfos UPS 15-55 SUC mo...

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    Original price $ 636.99 - Original price $ 636.99
    Original price
    $ 636.99
    $ 636.99 - $ 636.99
    Current price $ 636.99
  • Grundfos 529912 — 3/4″ Bronze Union Threaded End Pair for UP/UPS Pumps

    Grundfos
    Original price $ 40.99 - Original price $ 40.99
    Original price
    $ 40.99
    $ 40.99 - $ 40.99
    Current price $ 40.99

    Grundfos 529912 3/4 in. Bronze Union End Pair Brand: Grundfos | SKU: 529912 Product Overview The Grundfos 529912 is a pair of bronze threaded ...

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    Original price $ 40.99 - Original price $ 40.99
    Original price
    $ 40.99
    $ 40.99 - $ 40.99
    Current price $ 40.99
  • Grundfos 519601 — 3/4″ Cast Iron GF15/26 Flange Set for UP/UPS Circulators

    Grundfos
    Original price $ 20.92 - Original price $ 20.92
    Original price
    $ 20.92
    $ 20.92 - $ 20.92
    Current price $ 20.92

    Grundfos 519601 3/4 in. GF15/26 Cast Iron Flange Set Brand: Grundfos | SKU: 519601 Product Overview The Grundfos 519601 is a cast iron flange ...

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    Original price $ 20.92 - Original price $ 20.92
    Original price
    $ 20.92
    $ 20.92 - $ 20.92
    Current price $ 20.92

Pro tips: Add a spring-check to stop ghost flow, use isolation flanges for easy swap-outs, and set timers to match routines. For crossover kits, place the valve at the farthest fixture and insulate lines. Flush debris from old loops and clean strainers after start-up. Questions? Tell us pipe size, loop length, and heater/boiler details—we’ll dial in the pump and controls.

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