NEW - Air-Operated Double Diaphragm Pump. Polypropylene Construction, PTFE Diaphragm and 33.3 LPM Flow Rate. This self-priming diaphragm pump features an all-bolted polypropylene body and double PTFE diaphragms, sturdy and corrosion-proof, without leakage. Sealed ball valves and non-stall operation provides outstanding performance. It is perfect for transferring viscous and flammable fluids. Specifications Body Material: Polypropylene Diaphragm Material: PTFE Inlet Port: 1/2 inch Outlet Port: 1/2 inch Air Inlet Size: 1/4 inch Max Flow Rate: 33.3LPM / 2m3/hr Suction: 0-5 m Max Suspended Solids: 2.38 mm Max Head: 69 m Check Seat Material: Polypropylene