Flojet R3521144 12VDC pump requires 5.2Amps for operation and can pump up to 2.9 gallons of water per minutes. Produces up to 50 PSI and can run dry for extended periods without damage. This pump is self priming up to 8 feet. Has automatic pressure switch to turn pump on with demand. Has 3/4" ports. Size about 9.04" x 4.14" x 4.30". Requires port fittings (NOT INCLUDED).