Manufacturer: Rule-Mate
Model Number: 500 GPH
Series: 12V
MPN: RM500B
Listed Item Condition: New/New Other
We recently acquired a large inventory of overstock items, these items are in the manufacturer's original packaging, but may have minor cosmetic blemishes from storage, (See Photos).
Operating capacity: 500 GPH (1,893 LPH) open flow.
Voltage: 12 Vdc operation.
Amp draw: 1.8 Amps (2.4 Amps at 13.6Vdc).
Fuse size: 4 Amp recommended fuse.
Discharge size: 3/4 inch (19 mm) threaded port or 3/4 inch hose barb adapter.
Included fittings: One straight barb and one 90-degree angled barb.
Activation height: Turns on automatically when water reaches 2 inches (5 cm).
Shut-off height: Turns off completely when water drops to 3/8 inches (0.9 cm).
Power usage: Zero standby battery drain until water triggers the pump.
Sensor technology: Field-effect sensor detects water but ignores pure motor oil.
Backup logic: Enters a 2.5-minute temporary cycle mode if the sensor is blocked by debris.
Backflow prevention: Integrated check valve stops water from running back into the bilge.
Airlock protection: Internal hidden air vents stabilize pump priming.
Safety feature: Built-in thermal cut-off protection prevents overheating.
Maintenance: Snap-off strainer base allows fast cleaning.
Dimensions: 4.4 inches high, 6.0 inches wide (including discharge port), 2.9 inches deep.
Shaft material: Corrosion-resistant stainless steel.
What's Included:
- Rule Mate RM500B 500 GPH Fully Automated Bilge Pump, 12V, NEW OEM
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