Pressure Plunger Pump Discharge Connection Size 3/8 in Discharge Connection Type BSP Discharge Pressure (Maximum) 2 500 psi Flow Rate (Maximum) 3 gpm Intake Connection Size 1/2 in Intake Connection Type BSP Motor Speed (Maximum) 3 400 RPM Piston Design Triplex Pump Head Material Forged Brass Plunger Material Ceramic Required Electric Motor Horsepower (Maximum) Not Applicable Required Gasoline Engine Horsepower (Maximum) 6 hp Lubrication Oil Bath Shaft Outer Diameter 3/4 in