The Vevor air operated double diaphragm pump is designed for reliable pneumatic transfer of waste oil, fuel, grease, and other compatible liquids. It features a polypropylene pump body with PTFE diaphragms for corrosion resistance, leak-proof sealing, and dry-run capability. With a maximum flow rate of 4.4 GPM, 100 PSI max pressure, and 170' max head lift, it is suited for automotive, industrial, agricultural, and maintenance applications. Standard 1-1/2" inlet and outlet ports allow easy integration with existing piping and fittings. This pump is intended for liquids below 140°F and is not recommended for abrasive media.