Pressure Plunger Pump Discharge Connection Size 1/2 in Discharge Connection Type BSP Discharge Pressure (Maximum) 7 250 psi Flow Rate (Maximum) 7.9 gpm Intake Connection Size 3/4 in Intake Connection Type BSP Motor Speed (Maximum) 1 000 RPM Piston Design Triplex Pump Head Material Forged Brass Plunger Material Stainless Steel Required Electric Motor Horsepower (Maximum) 27 1/10 hp Required Gasoline Engine Horsepower (Maximum) 39 3/10 hp Lubrication Oil Bath