Our HM655 Curing Tank Circulating Pump is a 1/125-hp (36 watt) silent submersion pump with 3 GPM (11.4 I/min.) rating at 1-ft. (0.3m) height. The steady but gentle circulation from the 1/4″ (6.4mm) MNPT discharge may be aimed by placing the housing on any of four sides. Working parts are epoxy-encapsulated in the glass-filled nylon housing which comes with 6-ft. (1.8m) 115V grounded cord. Dimensions: 4.0×4.0x3.0″ (102x102x76mm).