1/3 hp heavy-duty, cast iron submersible sump/effluent pump with corrosion resistant thermoplastic base. Oil cooled 9.5 amp motor. Powerful anti-clog impeller can handle up to 1/2" diameter solids. Non-mercury tethered float switch with direct to pump plug connection, turns on when water reaches 14" and off at 7". Sump diameter needs to be at least 14". 1-1/4" FPT discharge. Weighs 21 lbs.