Function: 1. Made of aerospace grade aluminum alloy, which is resistant to high pressure, not easy do deformation and cracking, and very durable. 2. Oil-water separator with double separation, high quality desiccant do indoor use, well filtration, good air permeability. 3. The build quality is impressively gorgeous, the surface is smoother, and the blue look is more noble. 4. Compatible with various air pumps. After the work is completed, quickly loosen the vent screw to release the air and oil mixture with water. 5. Installation is convenient, the effect of oil separation from water is obvious, and the PCP air filter can be used repeatedly. Specification: Item Type: PCP Air Filter Material: Aluminum Alloy Colour blue Length: approx. 258mm or 10.2in Diameter: approx. 37.5mm or 1.5in Pressure type: 30 MPa Filter Level: 3 Filter Material: First Level Absorbent Cotton, Second Level Molecular Sieve, Third Level Coconut Shell Activated Carbon Type: Oil Water Separator Application: Air pump, air machine, dedicated high pressure air pump List of packages: 1 x filter 20 x filter element 2x rubber 2 x White Seal 4 x piece of cotton