Bilge Pump 500GPH Non-Automatic

Our Standard Bilge Pumps are engineered with snap-lock strainer bases allowing for easy access to clean the strainer and impeller cavity. They also feature a non-return valve that prevents water left in the discharge from running back, keeping bilges dryer and cleaner.

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  • Connections: For 19mm (3/4″) bore hose.
  • Dimensions: 99mm high, 64mm x 74mm.
  • Current Draw: 1.6(amps)
  • Fuse Size: 4(amp)
  • Output: Up to 31 litres/minute (7 gallons/minute) without check valve. Max. recommended discharge head 2m.
  • Light, compact pump for ski-boats and small vessels.
  • Tough plastic body with integral strainer.
  • Quick release inlet strainer allows rapid cleaning.
  • Low amp draw conserves batteries.
  • Built-in Thermal Cut-Off. Motor rated for 1500-hour life.
  • Check Valve included for Back Flow Prevention.
  • Vented body to prevent air locking.
  • Threaded port for easier installation and maintenance.
  • For automatic operation, use Rule Float Switches.
  • Base not interchangeable with old range but can be fitted to existing screw holes.


Keeping your bilge pump clear of nuisance water is the number one objective of our Rule Standard Bilge Pumps. Simple as that. Rigorous engineering and testing ensure that we keep delivering pumps that can efficiently handle the highest flow even in the most challenging applications.

Featuring a vented impeller housing, the Square Pump prevents airlock, ensuring continuous operation. Additionally, removable discharge fittings, including straight or 90-degree ports, are available to accommodate your installation needs seamlessly.

Rule Standard Bilge Pumps are standalone products with switches sold separately. The pumps can be paired with a float or panel switch, providing an extra level of security and protection.

Rule Standard include a vented impeller housing to prevent the pump from becoming airlocked. Removable discharge fittings, including straight or 90-degree ports are available to suit your installation requirements as well.

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