750 GPH Ultima Combo Automatic Submersible Bilge Pump 12VJohnson Pump Marine Ultima Combo bilge pumps are JPM's proven Cartridge Bilge Pumps combined with the non-clogging electronic switch Ultima Switch(TM) for automatic operation. The electronic automatic switch Ultima Switch(TM) uses the patented Mirus field effect detector cells producing micro-electrical fields that detect disruptions caused by level of water present in the bilge and automatically activates and deactivates the pump.CE-ApprovedFeatures:Pre-configured with an electronic Ultima Switch for automatic operationCapacities 500 GPH, 750 GPH, 1000 GPH and 1250 GPHExtremely energy efficientWater-cooled motor for long service intervalsCompact, all-in-one motor/impeller unit with stainless steel (SS2343) shaftNo tools needed for maintenance, no need for complete disassembly. You can now leave the pump casing attached to both the boat and the hoses. 500 GPH, 750 GPH, and 1000 GPH pumps have easy-to-install Dura-Port discharge ports to eliminate stress cracking caused by over-tightened hose clamps500 GPH, 750 GPH, and 1000 GPH pumps are delivered including both a straight and a 90Adeg smooth elbow Dura-Port as well as a removable check valveMeets the international standard, ISO 8849 marinePump body: ThermoplasticShaft seal: Lip sealShaft: Stainless steelVoltage: 12vWire size: 16GAHose size: 3/4Includes Dura-port connectionSpecificationsCapacity 3ft (0.9 m) head (13.6V/27.2): 44 l/min - 700 GPHCapacity straight (13.6V/27.2V): 50 l/min - 800 GPHAmperage: 3 AFuse size: 5 AConnection: 3/4Length: 4.41 (112 mm)Width: 4.25 (108 mm)Height: 3.35 (85 mm)Weight: 14.4 oz.