Inlet/Outlet NPTF (In.)3/8 in Max. Flow (GPH)154 gph Min. Flow Rate (GPH)135 gph Relief Pressure Max. (PSI)250 psi Max. Pressure (PSI)250 psi Body MaterialStainless Steel External ReliefNot Required By-PassYes MountingCarbonator Clamp Style Max. Temp. (F)158 °F Built-InRelief Valve Relief Valve PSI Setting200 psi Shaft303 Stainless Steel GPH of Water @ 50 PSI143 gph GPH of Water @ 100 PSI141 gph GPH of Water @ 150 PSI139 gph GPH of Water @ 200 PSI137 gph GPH of Water @ 250 PSI94 gph HP @ 50 PSI1/4 hp HP @ 100 PSI1/3 hp HP @ 150 PSI1/2 hp HP @ 200 PSI1/2 hp HP @ 250 PSI3/4 hp GPH140 gph UNSPSC40151521