Bronze Flexible Impeller Pump 5 Hole Bracket Discharge Connection Size 3/8 in Discharge Connection Type FNPT Feet of Head - Maximum 58 ft of head Flow Rate - Maximum 12 gpm Housing Material Bronze Media Intake Connection Size 3/8 in Media Intake Connection Type NPT Priming Self-Priming Required Horsepower 17/20 hp Shaft Material Stainless Steel Shaft Outer Diameter 1/2 in Viscosity - Maximum 1 cps Motor Mounting Type Vertical Operating Pressure - Maximum 25 psi