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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. 18550-000

    Flojet 18550-000 Macerator Pump: Hose Barb

    $190.93

    • 12V DC RV waste macerator pump
    • Connects to 3" slip-on RV outlet hose
    • Hose barb discharge port
    • Fresh water rinse capabilities
    • 13 gallons per minute flow rate
    • USCG and CSA listed
    Learn More
  2. 18555-000

    Flojet 18555-000 12V Portable RV Macerator Pump

    $275.85

    • Connects directly to the RV waste outlet
    • Garden hose discharge port
    • Fresh water rinse capabilities
    • Easy clean up and storage
    • USCG and CSA listed
    Learn More
  3. 18590-2092

    18590-2092 Jabsco 12V Marine Macerator Pump

    $173.08

    • 12V DC pump, grinds ~12gpm to 1/8"
    • Self-priming: 5ft. lift when wet, 4ft. when dry
    • 1.5in. hose barb inlet, 1in. ID hose barb outlet
    • Can be mounted in any position
    • Designed for permanent installation
    Learn More
  4. 18550-100

    Flojet 18550-100 Macerator Pump: Garden Hose

    $190.93

    • Connects directly to the RV waste outlet
    • Male garden hose discharge port
    • Fresh water rinse capabilities
    • Easy clean up and storage
    • USCG and CSA listed
    Learn More
  5. 37056-2000

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

    $10.59

    • 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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  6. 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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  7. Flojet 74001-1853A Macerator Motor

    74001-1853A Flojet Macerator Pump Motor

    $176.88

    • Replacement motor for the Flojet 18555-000
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  8. 17288-0010

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

    $15.34

    • 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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  9. 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
    Learn More
  10. Flojet 18590-2094 Macerator 24 volt

    Jabsco 18590-2094 24V Marine Macerator Pump

    $183.54

    • 24V DC pump, grinds ~12gpm to 1/8"
    • Self-priming: 5ft. lift when wet, 4ft. when dry
    • 1.5in. hose barb inlet, 1in. ID hose barb outlet
    • Can be mounted in any position
    • Designed for permanent installation
    Learn More

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