Pressure Plunger Pump, Discharge Connection Size 22 mm, Discharge Pressure (Maximum) 2,700 psi, Flow Rate (Maximum) 2.5 gpm, Intake Connection Size 3/4 in, Intake Connection Type Garden Hose, Motor Speed (Maximum) 3,400 RPM, Piston Design Axial, Pump Head Material Forged Brass, Plunger Material Stainless Steel, Required Electric Motor Horsepower (Maximum) Not Applicable, Required Gasoline Engine Horsepower (Maximum) 6 hp, Lubrication Oil Bath, Shaft Outer Diameter 3/4 in, Shaft Type Hollow WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov -