"The Wayne CDU790 features durable cast iron housing for long life and quiet operation. Fits small sump pits This submersible pump is compactly designed for 11in. or larger sump pits. Automatic on/off action with mechanical float switch. Top suction design. Designed for clear water use only. Power Cord ft. 8, Flow GPH 3,450, Impeller Shaft Glass reinforced polycarbonate, HP 1/3, Min. Basin Needed in. 11, Discharge Port in. 1 1/2, Amps 3.5, Min. Depth of Sump Required in. 24, Max. Total Head ft. 20, On-Level in. 9, Seals Buna-N, Volute Cast iron, Thermal Overload Protection Yes, Volts 120, Pump Housing Glass reinforced thermoplastic, Off-Level in. 4. Thermally protected motor Cast iron construction with corrosion-proof thermoplastic top Top suction strainer filters debris High capacity 1 1/2in. NPT discharge port Glass reinforced poly-carbonate impeller with steel shaft is designed for years of use Stainless steel fasteners for superior corrosion-resistance Permanently lubricated ball bearing 120F max fluid temperature 9 3/4in. dia. x 11 1/2in.H UL and CSA listed"