1/3 hp heavy-duty, cast iron submersible sump/effluent pump with corrosion resistant thermoplastic base and side discharge. Oil cooled 9.5 amp motor. Powerful anti-clog impeller can handle up to 1/2" diameter solids. Vertical float switch for operation in confined spaces. Automatically turns on at 9" and off at 4". Sump diameter needs to be at least 12". 1-1/4" FPT discharge. Weighs 21 lbs.