Booster Pumps
Booster pumps raise water pressure and flow for whole homes, irrigation zones, rainwater/cistern systems, RO/tankless make-up, and light commercial fixtures. Choose compact inline boosters, multi-stage centrifugal sets, or constant-pressure packages with smart drives.
Shop by need
- Constant-pressure systems (VFD): pump + drive that auto-adjusts speed to hold a target PSI with soft start/stop
- Multi-stage boosters: high head for sprinklers, long runs, and multi-story buildings
- Inline domestic boosters: quiet, compact units for whole-home pressure upgrades
- Jet & shallow-well boosters: draw from tanks or cisterns and boost to fixtures/irrigation
- Accessories: pressure tanks, switches/transducers, check & relief valves, strainers, unions, and vibration pads
Quick choosing guide
- Define the job: whole-home, irrigation, rainwater/cistern, RO feed, or fixture group.
- Size for flow & boost: total your required GPM and the pressure gain needed (target outlet PSI minus minimum inlet). Check the pump curve to ensure it meets both at operating point.
- Power & connection: verify voltage (115/230V single-phase or 3-phase), amperage, and pipe size (NPT, sweat, or flange).
- Control style: choose VFD/constant-pressure for steady PSI and quiet operation; choose on/off with pressure switch + tank for simple duty.
- Protection: add inlet strainer, check valve, pressure relief (where required), low-water cutoff, and isolation valves for service.
- Noise & placement: mount on a rigid base with pads; consider enclosure or mechanical room for sound control.
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Grundfos SCALA2 3-45 — 93013251 Compact Water Booster Pump 115V
GrundfosOriginal price $ 0.00 - Original price $ 0.00Original price $ 0.00$ 953.99$ 953.99 - $ 953.99Current price $ 953.99| /Grundfos SCALA2 3-45 (93013251) Water Pressure Booster Pump The Grundfos SCALA2 3-45 (93013251) integrates pump, motor, sensor, controller, and t...
View full detailsOriginal price $ 0.00 - Original price $ 0.00Original price $ 0.00$ 953.99$ 953.99 - $ 953.99Current price $ 953.99| / -
Grundfos SCALA1 3-45 — 99631742 Water Booster Pump 115V
GrundfosOriginal price $ 821.04 - Original price $ 821.04Original price$ 821.04$ 821.04 - $ 821.04Current price $ 821.04| /Grundfos SCALA1 3-45 (99631742) — 115V Self-Priming All-in-One Booster Pump The Grundfos SCALA1 3-45 (115V) integrates pump, sensor, motor, control...
View full detailsOriginal price $ 821.04 - Original price $ 821.04Original price$ 821.04$ 821.04 - $ 821.04Current price $ 821.04| / -
Grundfos Inlet Filter (99725185) — Protects Pumps from Sand and Debris
GrundfosOriginal price $ 77.64 - Original price $ 77.64Original price$ 77.64$ 77.64 - $ 77.64Current price $ 77.64| /Grundfos Inlet Filter (99725185) — Pump Protection for Rainwater and Well Applications The Grundfos Inlet Filter is a recommended accessory designe...
View full detailsOriginal price $ 77.64 - Original price $ 77.64Original price$ 77.64$ 77.64 - $ 77.64Current price $ 77.64| / -
Grundfos SCALA1 5-55 — 99631754 Water Booster Pump 115V
GrundfosOriginal price $ 991.42 - Original price $ 991.42Original price$ 991.42$ 991.42 - $ 991.42Current price $ 991.42| /Grundfos SCALA1 5-55 (99631754) — 115V High-Head Booster Pump The Grundfos SCALA1 5-55 at 115V brings full smart booster pumping performance to hou...
View full detailsOriginal price $ 991.42 - Original price $ 991.42Original price$ 991.42$ 991.42 - $ 991.42Current price $ 991.42| / -
Grundfos Scala2 93013250 — Compact Water Booster Pump 208-230V
GrundfosOriginal price $ 0.00 - Original price $ 0.00Original price $ 0.00$ 916.74$ 916.74 - $ 916.74Current price $ 916.74| /Grundfos Scala2 93013250 — Water Pressure Booster Pump The Grundfos Scala2 93013250 combines pump, motor, sensor, controller, and tank into one c...
View full detailsOriginal price $ 0.00 - Original price $ 0.00Original price $ 0.00$ 916.74$ 916.74 - $ 916.74Current price $ 916.74| / -
Grundfos SCALA1 5-55 — 99631739 Water Booster Pump 230V
GrundfosOriginal price $ 991.42 - Original price $ 991.42Original price$ 991.42$ 991.42 - $ 991.42Current price $ 991.42| /Grundfos SCALA1 5-55 (99631739) — All-in-One High Head Booster Pump The Grundfos SCALA1 5-55 is a powerful, compact booster pump system combining p...
View full detailsOriginal price $ 991.42 - Original price $ 991.42Original price$ 991.42$ 991.42 - $ 991.42Current price $ 991.42| / -
Grundfos SCALA1 3-45 — 99631736 Water Booster Pump 230V
GrundfosOriginal price $ 852.99 - Original price $ 852.99Original price$ 852.99$ 852.99 - $ 852.99Current price $ 852.99| /Grundfos SCALA1 3-45 (99631736) — Self-Priming All-in-One Booster Pump The Grundfos SCALA1 3-45 is a sleek, integrated booster pump system combinin...
View full detailsOriginal price $ 852.99 - Original price $ 852.99Original price$ 852.99$ 852.99 - $ 852.99Current price $ 852.99| /
Pro tips: Measure inlet pressure at peak demand, add friction loss from pipe/fixtures, and pick a pump that lands in the mid-efficient zone of its curve. For on/off systems, size the pressure tank to reduce short cycling. Follow local code for backflow prevention and thermal expansion. Label valves, keep a spare pressure switch or transducer, and service strainers seasonally.