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Water System Pumps & Parts

A pressure pump is an essential part of any household water system, that is not connected to a water utility service. Typically, a pressure pump will be used to pump water from your holding tank to the rest of your water system. Some water systems may require more than one pump (a deep well pump or a transfer pump, for filling the holding tank), while other systems may do well with just the pressure pump.

Properly designed systems will also include an inlet filter, to protect the pump from waterborne debris. We carry a variety of Flojet inlet strainers. The U.S. 40 Mesh strainer screen will block any particle larger than 0.0165 inches (420 microns) from entering the pump, and the transparent covers allow quick visual inspection of the filter screen. You can remove the cover to easily rinse any debris out, if it becomes clogged.

Most water pressure pumps should also be used with an accumulator/pressure tank. Unless you purchase a variable speed pump (like the Flojet R4525), an accumulator tank will help reduce pump cycling, and sudden changes in water pressure ("chatter" or "water hammering") in your pipes. An accumulator tank is installed after the pressure pump and matched to the pump's pressure switch settings, to hold a small reserve of pressurized water to supply a smooth, constant flow of water.

  1. 20406-002A

    Flojet 20406-002A Pump Head, 4325 Series

    $143.64

    • Replacement pump head kit
    • Part #7 on exploded diagram (includes parts 1-4)
    • Fits Flojet 4305,4325,2840,2880-series pumps
    Learn More
  2. 2009-004A

    Flojet 2009-004A, 2100 12V Pump Motor

    $101.91

    • 12VDC Flojet replacement pump motor
    • Fits 12V 2100-series pumps
    Learn More
  3. 20799-000

    Flojet 20799 1.1 Gal. Water Pressure Accumulator Tank

    $155.93

    • 1.1 gallon accumulator tank
    • Reduces pump cycling and water pressure fluctuations
    • Maximum 100psi working pressure
    • Default pressure: ~20psi
    • Can be adjusted to fine-tune performance
    Learn More
  4. 20406-008A

    Flojet 20406-008A Pump Head, 4306 Series

    $123.49

    • Replacement pump head for Flojet models:
    • 4306-500, 4306-501
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  5. 20406-001A

    Flojet 20406-001A Pump Head, 4406 Series

    $143.64

    • Replacement pump head for Flojet models:
    • 4406-043, 4406-143, 4406-343
    Learn More
  6. Flojet 189146330A V-FLO R4320 Pump Head

    Flojet 189146330A V-FLO R4320 Pump Head

    $143.71

    • Replacement R4320 pump head
    • EPDM version
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  7. Jabsco 18810-0000 accumulator tank - 2 gallon

    Jabsco 18810 2 Gal. Water Pressure Accumulator Tank

    $198.35

    • 2 gallon water pressure tank
    • Standard 3/4" NPT (male) ports
    • 20psi default pressure, can be adjusted
    • NSF-61 listed, meets RIVA regulations
    Learn More
  8. 2009-087A

    2009-087A Flojet 4305-144 Replacement Motor

    $115.09

  9. 12 volt DC replacement motor
  10. Fits following Flojet models:
  11. 4305-144
  12. Learn More
  • 2009-080A

    2009-080A 12V Flojet 4325-143 Replacement Motor

    $129.94

  • 12VDC replacement motor
  • Fits following Flojet models:
  • 4325-143, 2840-100
  • Learn More

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