Rule-Mate® 1100A Fully Automated Bilge Pump The NEW eco-friendly Rule Mate series of Bilge pumps feature a solid state water sensing technology that eliminates the need for a separate float switch. When water enters the bilge and reaches a certain height (2-3/4 inches) a sensor turns the pump on. After the water is pumped out, another sensor shuts the pump off. The sensor"s unique "field effect" technology is programmed to recognize the dielectric constant of water only. In the event of an onboard oil spill, straight motor oil that enters the bilge will not turn the pump on. It"s part of Rule"s continuing commitment to preserving our waterway. The new Rule Mates are available in 500, 750 and 1100 GPH models. Rule has been building bilge pumps for 30-years. The pumps are preferred by yachtsmen and commercial fishermen the world over. Features All-in-one pump & switch - No float switch required Pump turns on when water level rises & shuts off when water is removed Will not pump oil - Straight motor oil will not turn pump on Snap-off strainer for easy cleaning Anti-Fouling impeller Limited three year warranty Specifications Voltage:12 Vdc Amp Draw: 3.4 amp Fuse Size: 5.0 amp Height: 4.5 inches Width: 5 Inches