Check the listing for details. Liberty 257 Automatic Submersible Sump Pump, Float Switch, 115V, 1 Ph, 1/3 HP. Condition: New. Listed at 424.25 USD. The 257 Liberty Pump is a 1/3 HP Automatic Submersible Sump Pump that is magnetically operated with a vertical float VMF switch and 10ft power cord. It is a unique one-piece cast iron housing and thermally protected & permanently lubricated motor.This pump can operate in a 10" diameter sump pit, handles solids up to 1/2", and has a 18 shut-off head. Model 257 is for Sump and De-watering Applications only. This Vertical Magnetic Float (VMF) model is not recommended for effluent applications due to their short On/Off cycle. Wide angle float models such as Liberty Pumps 251 and 253 are better suited for effluent applications and are easily adjustable for different On/Off levels. Features:Rugged 1/3 HP motor, oil filled with thermal overload protection1/2" solids handling1-1/2" DischargeHermetically sealed motor and switch cavities, and permanently lubricated bearingsLibertys UNI-BODY casting - a solid, one piece housing that eliminates the lower motor seal ring found on other pumpsEpoxy powder coat finishVortex style impeller for superior solids-handling. Made of high temperature engineering polymerFasteners all made of non-corrosive stainless steel416 stainless steel rotor shaft