Air Operated Diaphragm Pump, Metallic Double Diaphragm, Air Inlet 1/4 In, Flow 17 GPM, Max Flow 15 CFM, Max Flow 21 GPM, Max Operating PSI 100, Inlet 3/4 In FNPT, Outlet 3/4 In FNPT, Port Type Single, Max Dia Solids 1/16 In, Max Temp 212 F, PTFE Ball Material, 316 Stainless Steel Body Material, 316 Stainless Steel Check Seat Material, PTFE Diaphragm Material, Self Priming Dry 15 Ft, Self Priming Wet 28 Ft