Commercial Duty Reversing Vane Pump - 12VGROCO Vane Pumps are self-priming, are instantly reversible, and are capable of operation in either direction. Relatively high flow (more than gear pumps) makes them suitable for general purpose duties such as deck-wash, bilge pumping (filtered inlet), fuel transfer, ballast transfer, and oil change. Ignition protected motor, #316 stainless steel shaft, and reversing (R). SPO-80 Series Vane Pumps have a more powerful motor and are better suited for long run-time or head pressure greater than 20 PSI. Specifications:Self Priming: YESThread NPT: 1/2 + Garden Hose AdaptorControl Type: Pump Mounted Reversing SwitchMax GPM: 7Breaker DC: 30 Amp