"The Wayne Submersible Stainless Steel/Cast Iron Sump Pump has a mechanical vertical float switch for automatic operation. Durable cast iron volute. Long-lasting carbon-ceramic seals. Top suction design reduces clogging. Easily installed without any plumbing changes. Impeller Shaft Stainless steel, Volts 115, Thermal Overload Protection Yes, Flow GPH 5,400, Discharge Port in. 1 1/2, Min. Basin Needed in. 11, Min. Depth of Sump Required in. 12, HP 1, On-Level in. 9, Amps 9.8, Pump Housing Stainless steel, Power Cord ft. 8, Off-Level in. 3, Volute Cast iron, Seals Carbon/Ceramic, Dimensions L x W x H in. 10 x 10 x 14, Max. Total Head ft. 22. 1 HP motor with stainless steel housing Cast iron pump housing Long-lasting carbon-ceramic seals Top suction design reduces clogging Lower roller bearing element and upper bronze sleeve for quiet performance Easily installed without any plumbing changes"