Automatic Diaphragm Water Pressure Pump 24v 4.5 Gpm &ndash; Boat, Rv, Agricultural. Five Oceans BC-3609 Automatic Demand up to 40 PSI Self Priming up to 6 feet Delivers 4.5 GPM Water Temperature: 140F (60C) Max. Draw: 3 Amp Voltage: 24v