Pressure Plunger Pump, Discharge Connection Size 1/2 in, Discharge Connection Type BSP, Discharge Pressure (Maximum) 1, 800 psi, Flow Rate (Maximum) 24 gpm, Intake Connection Size 1 in, Intake Connection Type BSP, Motor Speed (Maximum) 1, 450 RPM, Piston Design Triplex, Pump Head Material Nickel Plated Brass, Plunger Material Ceramic, Required Electric Motor Horsepower (Maximum) 27 1/5 hp, Required Gasoline Engine Horsepower (Maximum) 30 hp, Lubrication Oil Bath, Shaft Outer Diameter 30 mm