HydroMax - Automatic Fresh Water Pump. Self Priming, Internal Bypass - Low Cycling, Built-in Check Valve and Thermal Overload, 55 PSI, Can Run Dry Without Damage Direct OEM Replacement for 3 GPM 12VDC Demand Pumps. Includes Pre-filter and two 1/2 hose fittings. Open Flow: 11.3 LPM / 3.0 GPM Volts: 12V Amps: 10 Maximum Fuse: 15 AMP Press Setting: 55 PSI / 3.8 Bar