Rule-Mate fully automatic submersible bilge pumps with Rule’s exclusive “Spongeability” feature. This feature leaves the bilge the driest ever. When the water in the bilge reaches a certain height the solid state sensor automatically activates and the pump runs until the water is pumped out reducing the boat weight saving fuel and minimising bilge odour. No float switch is required as it is built in. The innovative design incorporates the bilge pump and water sensor in a single housing. Pump has a threaded discharge port with O Ring seal and are supplied with both 90 degree and straight hose ports. 12 Volt Amp with 20mm hose outlets.