Use this Air Filter on your air hand pump or air compressor hose to filter the oil, moisture and impurities when your fill your pcp bottle. It is simple but practical.</br></br> The shell is made of aviation grade aluminum alloy, resistance to high pressure </br>Internal use of imported filter element, well filtration, the air is pure and breathable </br> Reach 90% effect of oil and water separation. It can be used over and over again</br> Compatible with many kinds of air compressors </br></br> Material: Aluminum</br> Type: Oil-water Separator</br> Fit for: High pressure air pump</br> Pressure: 30MPa</br> Length: About 40mm</br> Connector specification: 8mm male and female</br></br> Package Included:</br> Oil-Water Separator: PCS</br> Kits of Filter: 20 PCS</br> Kits of Seal Ring: 4 PCS</br> Gasket: 2 PCS