PROCON 111A035F11CA 250 Pump,Rotary Vane,BrassRotary Vane Pump, Inlet/Outlet NPTF (In.) 3/8 in, a hundred Mesh Filter Strainer, Max. Flow (GPH) 48, Min. Flow Rate (GPH) 29, Relief Pressure Max. (PSI) 250, 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, 303 Stainless Steel Shaft, GPH of Water @ 50 PSI 37, GPH of Water @ two hundred PSI 31, GPH of Water @ 250 PSI 29, HP @ 50 PSI 1/4 hp