The Little Giant 511089 ES50W-SMPX-LG is a pre-assembled simplex system. It consists of a sewage ejector pump and a basin. This system collects sewage, effluent, drainage or seepage water in its huge basin and pumps it to a pipe on a higher level. 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 511089 ES50W-SMPX-LG Simplex System can pump 120 GPM at 5' head pressure and up to 50 GPM at 15' head pressure. It features a wide angle float switch. The pump comes with a 20' cord. The voltage needed to run the pump is 115V single phase. Its 20" x 30" polyethylene basin has ribs for added strength and it comes with a structural foam cover. For more details, you can refer to the specification sheet. The Little Giant 511089 ES50W-SMPX-LG Simplex System is covered by a limited warranty for a period of 24 months. This product is approved by IAPMO for meeting the standards. Little Giant has proven their excellence for over 70 years by producing reliable pump solutions, packaged system options, and accessories.