Double Diaphragm Pump Pump Operation Type Air Operated Max Flow 35 gpm Max Temp - Pumps 150 Degrees F Housing Material - Pumps Aluminum Inlet/Outlet Size 1 in Connection Style NPT Air Inlet Size 1/4 in FNPT Diaphragm Material - Pumps Santoprene(R) Agency Compliance ATEX CE REACH RoHS Valve Type Ball Max Flow GPM 35 gpm Max Operating Pressure 120 psi Ball Material Santoprene(R) Check Seat Material Polypropylene Max Dia Solids 1/8 in Manifold Connection Single