Shurflo 2088-554-144 Fresh Water Pump, 12 Volts, 3.5 Gallons Per Minute, 45 Psi Positive Displacement 3 Chamber Diaphragm Pump Check Valve: (1-Way Operation) Prevents Reverse Flow CAM: 3.5 Degree Motor: Permanent Magnet, P/N 11-173-01, Thermally Protected Voltage: 12 VDC Nominal