The Rule RM500B is a fully automatic bilge pump incorporating field sensor technology that eliminates the need for a mechanical float switch. A great solution for a modern engine bay, the level sensor is sealed into the body of the pump and the pump is automatically activated when the sensor detects a 50mm level of water and switches off at 9mm.

• Connections: For 19mm (3/4")

• Dimensions: 112mm high, 130mm long, 73mm wide.

• Fuse Size: 4 (amp).

• Output: Up to 31 litres/minute (7 gallons/minute). Max. recommended discharge head 2m.

• Fully automated bilge pump with integral sensor.

• Back up feature to prevent dry running if sensor is fouled, pump reverts to 2.5 minute cycle mode.

• Compact pump for smaller vessels.

• Tough plastic body.

• Back flow prevention to reduce the amount of water left over in the bilge.

• Air Vents in the body to help prevent air locks in challenging installations.

• Quick release inlet strainer allows rapid cleaning.

• Low current draw helps minimise battery capacity consumption.