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Macerator Pumps & Parts

Macerator Waste Pumps are used to empty waste holding tanks on RVs, boats, and similar vehicles. By breaking soft waste into smaller pieces, the waste can easily pass through a regular hose, making the job of emptying waste tanks much easier. By using a macerator pump, and flushing your tank with water periodically, you can virtually eliminate any clogging in your waste system.

Flojet/Jabsco 18500 series Macerator pumps grind sewage waste down to particles 1/8" diameter or less, allowing easy tank pumping through a standard 5/8" garden hose (or other similarly sized hose). These pumps will empty most recirculating toilets in under two minutes, and a standard 30 gallon holding tank in three minutes or less. Their self-priming design allows installation above the tank, if that is most convenient. (NOTE: Macerator pumps are designed ONLY to handle soft waste and tissue. Solid objects, or sanitary napkins, can clog or damage the pump, and void any applicable warranty.)

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  1. 18594-1000

    18594-1001 Flojet Macerator Inlet Housing 3" Flush Fitting

    $65.12
    • Replacement macerator housing
    • Part #4 on exploded diagram
    • Fits Flojet 18550 macerator pumps
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  2. Flojet 91010250 Macerator Rinse Hose Adapter

    Flojet 91010250 Macerator Rinse Hose Adapter

    $25.54
    • Macerator rinse hose adapter
    • Part #5 on exploded diagram
    • For Flojet 18555-000 portable macerator pump
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  3.  91010-253A Flojet Macerator Adapter O-ring Kit

    91010-253A Flojet Macerator Adapter O-ring Kit

    $10.64
  4. Replacement O rings for Flojet 18555-000 portable macerator
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  • 37056-1000 Macerator Chopper Blade Kit

    37056-1000 Flojet/Jabsco Macerator 2-Blade Chopper Kit

    $16.64
    • Replacement macerator chopper blade kit
    • Includes chopper plate and lock nut
    • Fits most Flojet & Jabsco macerator pumps
    • See description below for detailed list of compatible pumps
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  • 17288-0010

    17288-0010 3.125" Flojet/Jabsco Macerator Pump Stud (pair)

    $24.84
    • Replacement 3.125" motor mount stud (2)
    • Part #13 on exploded diagram
    • Fits Flojet/Jabsco 18590 and 18550-series pumps
    • IMPORTANT: Measure your old studs to make sure they are 3.125"
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  • 18599-000

    18599-000 Flojet Portable Macerator Pump Adapter w/Gasket

    $56.42
    • Flojet Portable Macerator Pump adapter.
    • For 18555-000 portable macerator pump.
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  • 37056-2000

    37056-2000 Flojet/Jabsco Macerator 4-Blade Chopper Kit

    $10.54
    • Replacement macerator chopper plate kit
    • Part #3 on diagram for Flojet 18590 series pumps
    • Part #5 on diagram for Jabsco 22130 series pumps
    • Includes chopper blade and lock nut
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  • 21000-378

    21000-378 Flojet Macerator Pump Switch Kit

    $54.01
    • Replacement switch kit for portable macerator pump
    • Not shown on diagram for Flojet 18555-000 macerator pump
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  • 18597-1000

    18597-1000 Flojet/Jabsco Macerator Pump Wearplate

    $11.32
    • Replacement macerator wear plate
    • Part #6 on exploded diagram
    • Fits Flojet/Jabsco 18590-2092, 18590-2094, 18555-000, 22130-2721, 18690-0000 Macerator Pumps.
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  • 18596-1000

    18596-1000 Flojet/Jabsco Macerator Wearplate Gasket Kit

    $10.81
    • Replacement wear plate gasket (2)
    • Part #7 on exploded diagram
    • Fits Flojet/Jabsco 18590-2092, 18590-2094, 18555-000, 18690-0000 Series Macerator Pumps.
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