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Rule-Mate 500 Automatic Bilge Pump 31LPM

$169.95$175.95 incl GST


Rule-Mate 500 Automatic Bilge Pump 31LPM:

  • 12 volt 500 GPH – 31 LPM. RULE model RM500B 1.8 amp @ 12V, 2.4 amp @ 13.6V Fuse size 4 amp.
  • 24 volt 500 GPH – 31 LPM. RULE model RM500B-24 1.0 amp @ 24V, 1.2 amp @ 27.2V. Fuse size 2 amp.


  • Fully submersible pump – 500 US gallons per hour – 31 litres per minute
  • Higher flow – optimised impeller to provide greater flow at the same amperage as previous model
  • High efficiency, low amp draw ignition protected motor includes true Electromagnetic suppression (EMC)
  • 16 gauge tin coated copper electrical wiring with silicone infused water blocking feature – to stop water wicking down inside the wiring
  • Built-In thermal cut-out (TCO) in the motor provides additional protection for pump & vessel
  • Backflow prevention – now includes a removable check valve in the discharge nozzle which reduces the amount of water draining back from the pump discharge hose into the bilge. Note – using the check valve will reduce the rated output flow.
  • Threaded discharge port – gives easier installation and maintenance.
  • Discharge hose port is included with each pump
  • Hidden air vents in the pump prevent air locking in challenging plumbing installations and helps with the check valve operation
  • Compact – 99mm Height x 74mm Width x 64mm depth – not including discharge
  • 1 x straight port provided. Next generation compact submersible 500 GPH electric pump for use as a bilge or bait pump on smaller craft. Totally submersible pump with water cooled, ignition and TCO protected motor, stainless steel shaft and snap-on strainer base. This pump is extremely efficient, draws low current and offers high capacity output in a very compact housing, to fit into the smallest available space.Please note – using the included check valve will reduce the output flow of the pump. Available in both 12 volt & 24 volt models.

3 year limited warranty.

Additional information

Weight .5 kg
Dimensions 20 × 10 × 10 cm

12V, 24V