SPF33 SUBM SUMP PUMP 1/3 HP WAYNE | 1/3 hp coated steel and reinforced thermoplastic 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 corrosion-resistant, thermoplastic pump base. Fully submersible. 1/3 hp max flow rate is 3600 gph at 0 ft. 1 1/2 NPT discharge. For use in 11 in Dia or larger sump basins.