Pondmaster magnetic-drive pumps are energy efficient and can be operated submerged or in-line. The Pondmaster PM500 Pump includes a pre-filter and produces 525 gal/hr. at 1 ft. and has a 5 year warranty, 1/2"FPT inlet & 1/2" MPT discharge, 18 ft. cord and draws 45 watts. 3.8"W x 5"L x 4.2"H