The shell is made of aviation grade aluminum alloy, resistance to high pressure. Internal use of imported activated carbon, reach 95% effect. Of oil and water separation. It can be used over and over again. Compatible with many kinds of air compressors. Product Material: Aviation Aluminum 8, Compressor Type:Reciprocating 9, Working Pressure:30mpa 10, Working Principle: Centrifugal Filtration. 1 x 30Mpa air filter 1 x 8mm connector 1 x Set of mounting parts 2 x Pipes. We are not responsible for undeliverable address.