The Liberty 257-2 Submersible Sump Pump is an automatic effluent pump suitable for a variety of low-head effluent pumping and basement dewatering. It is a heavy duty that enables sewage to be pumped over long distances. The pump has a discharge size of 1 1/2" and it can handle solids of up to 1/2" in diameter. Its 1/3 hp oil-filled, permanent split capacitor motor is protected in a class 25 cast iron housing. This Liberty 257-2 Submersible Sump Pump can pump up to 44 GPM at 5' head pressure and has a shut-off head of 23'. It comes with an integral vertical float switch. It includes a quick-disconnect 25' power cord. The voltage needed to run this pump is 115V single phase. It utilizes a vortex style, engineered polymer impeller with pump out vanes on the back shroud to prevent clogging of debris in the seal area. More details are available in the specification sheets. The Liberty 257-2 Submersible Sump Pump is covered by a standard Limited Warranty for a period of 3 years. This product proudly bears the CSA mark and is recognized for meeting the required environmental performance standards. Liberty, the company that makes and innovates high quality pumps is relied on by hundreds of professional contractors each day. Liberty has been cited as one of Rochester's Top 100 Companies for twelve years.