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FloJet 18550-000 Macerator Inline RV Waste Pump

Stainless Steel Impeller

The Flojet macerater pumps are perfect for transferring waste and emptying holding tanks into dumping stations.


  • Empty holding tanks and avoid dump stations
  • Transfer waste from recirculating toilets to main holding tank


  • Grinds waste as it pumps
  • 13 GPM (49 LPM) flow rate
  • Intake Port: Up to 3" (75mm) hose
  • Discharge: 1" (25mm) hose barb
  • Self-priming flexible impeller features stainless steel wear plate and cutter that reduces particle size to 1/8".
  • Exclusive Run-Dry Protection Device automatically shuts off the pump after approximately 20 seconds of run-dry operation, protecting the pump from serious damage.
  • Open inlet and 1-1/2" N.P.T (Male) outlet.
  • Flojet Macerator pump grinds waste into small particles as it pumps. This allows the use of a 1” hose for waste discharge outlet.
  • The Macerator is available with a 1-1/2” combination barb-threaded inlet or a 3” slip fitting inlet. The outlet is a 1” barb fitting.
  • Fast holding tank pumps out in only 3-4 minutes for a 30 gallon holding tank.
Model No
Voltage L/min
Impeller Macerator
18550-000 12 Volt DC 49 0 Nitrile Compound Stainless Steel


Full Details
Suitable uses Emptying holding tanks, on recreational vehicles, quicker at dumping stations.
Warranty 12 months National Warranty Aust wide
Materials used Impeller: Jabsco Nitrile Compound   Macerator: Stainless Steel
Electrical Voltage: 12v DC   Amp draw: 16    Watts: 192   Power lead length: 300mm
On / Off switch No
Pressure switch No
Self prime Self priming, flexible impeller, stainless steel wear plate
Suction Strainer No
Inlet/Outlet Ports Inlet: Will take up to 3" Hose   Outlet: 1" ID hose barb
Connections Included None
Fan cooled motor No
Dimensions Length: 215mm   Height: 105mm    Width: 100mm (105mm mounting feet width)
Made in: Mexico
Spare Parts Click here for spare parts

Aussie's Observations about FloJet 18550-000 Macerator Inline RV Waste Pump

Budget • Good • Better • Best • Superior

Suitable for:

Pumping waste with large particles.

What we liked:

A macerator pump which cuts soft solids down to size for sending to waste dumping points or septic tanks

Less than ideal:

Nothing at all, another tried and true pump from Flojet.


Product not available

Technical Specifications

Product Name FloJet 18550-000 Macerator Inline RV Waste Pump
Max Flow L/Minutelitres per min49
Max Flow L/Hourlitres per hour2940
Voltage12v DC

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