WAYNE T75S10-4 3/4 HP, 2-Wire, Deep Well Stainless Submersible Pump 3/4 hp; max. Flow rate is 535 gallons per hour; at 100 ft. (50 psi) 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 535-Gallon per hour at 100-Feet depth (50 PSI) Submersible 4-Inch design for easy installation and quiet operation 2 Wire pumps contain 2 wires plus the ground Wire and do not require a control box for operation