1/3 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 pump design eliminates air locks and clogging from debris in bottom of sump pit. Epoxy-coated steel motor housing and rugged, cast iron pump base. Fully submersible. 1/3 hp, max flow rate is 3800 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.