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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

  1. Define the job: whole-home, irrigation, rainwater/cistern, RO feed, or fixture group.
  2. 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.
  3. Power & connection: verify voltage (115/230V single-phase or 3-phase), amperage, and pipe size (NPT, sweat, or flange).
  4. Control style: choose VFD/constant-pressure for steady PSI and quiet operation; choose on/off with pressure switch + tank for simple duty.
  5. Protection: add inlet strainer, check valve, pressure relief (where required), low-water cutoff, and isolation valves for service.
  6. Noise & placement: mount on a rigid base with pads; consider enclosure or mechanical room for sound control.


  • Grundfos SCALA2 3-45 — 93013251 Compact Water Booster Pump 115V

    Grundfos
    Original price $ 0.00 - Original price $ 0.00
    Original price $ 0.00
    $ 953.99
    $ 953.99 - $ 953.99
    Current 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...

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    Original price $ 0.00 - Original price $ 0.00
    Original price $ 0.00
    $ 953.99
    $ 953.99 - $ 953.99
    Current price $ 953.99
  • Grundfos SCALA1 3-45 — 99631742 Water Booster Pump 115V

    Grundfos
    Original price $ 821.04 - Original price $ 821.04
    Original price
    $ 821.04
    $ 821.04 - $ 821.04
    Current 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...

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    Original price $ 821.04 - Original price $ 821.04
    Original price
    $ 821.04
    $ 821.04 - $ 821.04
    Current price $ 821.04
  • Grundfos Inlet Filter (99725185) — Protects Pumps from Sand and Debris

    Grundfos
    Original price $ 77.64 - Original price $ 77.64
    Original price
    $ 77.64
    $ 77.64 - $ 77.64
    Current price $ 77.64

    Grundfos Inlet Filter (99725185) — Pump Protection for Rainwater and Well Applications The Grundfos Inlet Filter is a recommended accessory designe...

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    Original price $ 77.64 - Original price $ 77.64
    Original price
    $ 77.64
    $ 77.64 - $ 77.64
    Current price $ 77.64
  • Grundfos SCALA1 5-55 — 99631754 Water Booster Pump 115V

    Grundfos
    Original price $ 991.42 - Original price $ 991.42
    Original price
    $ 991.42
    $ 991.42 - $ 991.42
    Current 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...

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    Original price $ 991.42 - Original price $ 991.42
    Original price
    $ 991.42
    $ 991.42 - $ 991.42
    Current price $ 991.42
  • Grundfos Scala2 93013250 — Compact Water Booster Pump 208-230V

    Grundfos
    Original price $ 0.00 - Original price $ 0.00
    Original price $ 0.00
    $ 916.74
    $ 916.74 - $ 916.74
    Current 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 details
    Original price $ 0.00 - Original price $ 0.00
    Original price $ 0.00
    $ 916.74
    $ 916.74 - $ 916.74
    Current price $ 916.74
  • Grundfos SCALA1 5-55 — 99631739 Water Booster Pump 230V

    Grundfos
    Original price $ 991.42 - Original price $ 991.42
    Original price
    $ 991.42
    $ 991.42 - $ 991.42
    Current 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...

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    Original price $ 991.42 - Original price $ 991.42
    Original price
    $ 991.42
    $ 991.42 - $ 991.42
    Current price $ 991.42
  • Grundfos SCALA1 3-45 — 99631736 Water Booster Pump 230V

    Grundfos
    Original price $ 852.99 - Original price $ 852.99
    Original price
    $ 852.99
    $ 852.99 - $ 852.99
    Current 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 details
    Original price $ 852.99 - Original price $ 852.99
    Original price
    $ 852.99
    $ 852.99 - $ 852.99
    Current 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.

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