The Little Giant ESP50 620178 Submersible Sump/Effluent Pump is designed for dewatering, water transfer, and effluent wastewater removal. The pump has a discharge size of 1-1/2" FNPT (38 mm) in diameter so it can handle solids of up to 3/4" (19 mm). It has a 1/2 hp motor. This Little Giant ESP50 620178 Submersible Sump/Effluent Pump can pump up to 61 GPM at 15' head pressure and up to 36 GPM at 25' head pressure. It comes with a vertical mechanical switch. It includes a 20' cord. The needed voltage to run this pump is 115V single phase. More details are available in the specification sheets. The Little Giant ESP50 620178 Submersible Sump/Effluent Pump is covered by a Limited Warranty for a period of 24 months from date of purchase. This product proudly bears the CSA mark and is recognized for meeting the required environmental performance standards. Little Giant and its parent company, Franklin Electric, have been making pumps for over 70 years. The quality, durability and dependability of their products have made them a world leader in pumps of virtually every variety.