The Little Giant 511581 ES50W2-20 is a submersible wastewater pump. It is designed for sewage and effluent wastewater transfer. This pump has a discharge size of 2" (51 mm) and it can handle up to 2" solids. It has a 1/2 hp permanent split capacitor (PSC) motor with thermal overload protection. This Little Giant 511581 ES50W2-20 Wastewater Pump can pump 120 GPM at 5' head pressure and up to 48 GPM at 15' head pressure. It is manually operated. This pump comes with a 20' cord. The voltage needed to run this pump is 230V single phase. It has an epoxy-coated cast iron motor housing. Its vortex impeller, which is made of engineered composite materials, is recessed to minimize clogging. For more details, you can refer to the specification sheet. The Little Giant 511581 ES50W2-20 Wastewater Pump is covered by a limited warranty for a period of 24 months. This product bears the CSA mark for meeting the standards. Little Giant has proven their excellence for over 70 years by producing reliable pump solutions, packaged system options, and accessories.