Wayne 57600-WYN1 SPT33 1/3 HP Reinforced Thermoplastic Sump Pump with Tether Float Switch Top suction pump 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 gallons per hour; 2500 gph at 10 ft. Of discharge lift 1-1/2" npt discharge