Liberty Pumps 250-2 Manual 1/3 HP Cast Iron Submersible Sump/Effluent Pump with 25-Feet Cord Rugged 1/3 hip motor, oil filled with thermal overload protection 1/2" solids handling - 1-1/2" discharge Hermetically sealed motor and switch cavities and permanently lubricated bearings Vortex style impeller for superior solids-handling. Made of high temperature engineering polymer