Rotary Vane Pump Inlet/Outlet NPTF (In.) 3/8 in 100 Mesh Filter Strainer Max Flow (GPH) 73 gph Min Flow Rate (GPH) 54 gph Relief Pressure Max (PSI) 250 psi Max Pressure (PSI) 250 psi Brass Body Material External Relief Not Required By-Pass Yes Carbonator Clamp Style Mounting Max Temp (F) 158 Degrees F Built-In Relief Valve Relief Valve PSI Setting 200 psi 303 Stainless Steel Shaft GPH of Water @ 50 PSI 62 gph GPH of Water @ 200 PSI 56 gph GPH of Water @ 250 PSI 54 gph