Pump, 1/2" NPTF, 264 Max. GPH, Relief ValveMfr #: 801 Price For: Each By Pass: Yes Inlet Outlet NPTF (In.): 1 2 Shaft: Stainless Steel Item: Rotary Vane Pump Relief Pressure Max. (PSI): 260 External Relief: Not Required GPH of Water @ 100 PSI: 259 GPH of Water @ 50 PSI: 261 Min. Flow Rate (GPH): 245 GPH of Water @ 200 PSI: 253 GPH of Water @ 250 PSI: 245 Max. Flow (GPH): 264 Body Material: Brass Relief Valve PSI Setting: 125 Max. Pressure (PSI): 260 Built In: Relief Valve Mounting: Carbonator