.Rule-Mate® 750A...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 pumpon. It's part of Rule's continuing commitment to preserving our waterway....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:.. - Flow Rate: 750 gph 2839 lph. - Voltage: 12 Vdc. - Amp Draw: 2.7 amp. - Fuse Size: 5 amp. - Height: 4.5 inches 114.3 mm. - Width: 6 Inches 152.4 mm .