1/2 HP cast iron and coated steel submersible sump pump. Assembled in the US with foreign and domestic parts. Float switch tested to 1 million cycles. Top suction design eliminates air locks and clogging from debris in bottom of sump pit. Epoxy-coated steel motor housing and rugged, cast iron base. Fully submersible. 1/2 HP; max flow rate is 4200 GPH at 0 ft. 1 1/2 in. NPT discharge. For use in 11 in. diameter or larger sump basins. 9 in. ON level and 4 in. OFF level.