Double Diaphragm Pump Operation Type Air Operated Valve Type Ball Body Material Aluminum Inlet/Outlet Size 1/2 In. Connection Style NPT Air Inlet Size 1/4 in FNPT Max Flow GPM 12 Max Operating Pressure 100 psi Max Temp 212 Degrees F Diaphragm Material Santoprene(r) Ball Material EPDM Check Seat Material Aluminum Max Dia Solids 1/32 In. Manifold Connection Single Length 8-21/32 In. Width 7-5/16 In. Height 10-43/64 In. Self-Priming Dry 5 ft. Self-Priming Wet 28 ft.