Commercial Duty Vane Pump - 12VGROCO Vane Pumps are self-priming. 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 and #316 stainless steel shaft. 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: NoneMax GPM: 7Breaker DC: 15 Amp