WAYNE T100S10-2 1 HP, 3-Wire, Deep Well Stainless Submersible Pump 1 hp; max. flow rate is 541 gallons per hour; at 100 ft. (50 psi) (models T100S 10-2) Corrosion-resistant stainless steel motor enclosure, diffusers, intake screen and check valve High efficiency, hermetically sealed motor is thermally protected to prevent overheating 1-1/4 in. Npt discharge designed to fit most applications Submersible design eliminates the need for priming and provides quiet operation Pumps up to 455-Gallon per hour at 140-Feet depth (50 PSI) Submersible 4-Inch design for easy installation and quiet operation 3 Wire pumps contain 3 wires plus the ground Wire and require a control box for operation