Meet the Aqua-Pro Universal 3.0 Gallons Per Minute Water Pump. Designed with an automatic on demand , adjustable pressure switch to easily regulate water flow for multiple fixtures. Compact but capable, it is a great fit for tight spaces. May be configured with different inlet types, each with their own unique fittings to ensure it fits any application.• Type: Self-Priming• Pump Operation: 12 Volt DC• Flow Rate: 3 Gallon Per Minute• Pressure Rating (PSI): 55 Pound Per Square Inch• Inlet Port Type: 1/2 Inch Male Threads• Outlet Port Type: 1/2 Inch Male Threads• Length (IN): 8 Inch• Width (IN): 4-15/16 Inch• Height (IN): 4-3/8 Inch• Material: Plastic• With Thermal Overload Protection: Yes• With Pressure Switch: Yes• On Demand Operation; Adjustable Pressure Switch (45 To 65 PSI)• Variable Flow Technology â No Accumulator Tank Necessary, Less Cycling; Adjustable Pressure Switch (45 To 65 PSI)• Built In Check Valve â Prevents Back Flow, Allows For City Water Connection• Rubber Mounting Base â Dampens Vibration, No Rust, Industry Standard Mounting Pattern Run Dry Safe Thermal Overload Protection Compact enough to fit in tight spaces | Aqua Pro Fresh Water Pump, Self-Priming; 3.0 Gallons Per Minute; 55