GROCO Heavy Duty Positive Displacement Vane Pump - 12V [SPO-60-N 12V]Heavy Duty Positive Displacement Vane Pump 12V GROCO Vane Pumps are self priming 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. All models have an ignition protected motor and #316 stainless steel shaft. Specifications: Self Priming: YES Thread NPT: 1 2" +