Wayne SWS75 Well Jet Pump, 3/4-Horsepower 3/4 hp; max. Flow rate is 510 gallons per hour; (50 psi) 3/4 in. Npt discharge with 1-1/4 in. Suction Dual voltage (120V/240V) high efficiency square flange motor (factory set for 240V) Pressure switch is pre-set at 30-50 psi for automatic operation Durable cast iron volute with dedicated priming port for volute filling Pumps up to 468-Gallon per hour Dual voltage (120/240-Volt) high efficiency square flanged motor is factory wired for 120-Volt. Dedicated priming port for volute filling Durable cast iron volute 3/4-Inch NPT discharge with 1-1/4-Inch discharge