The Qolekog Water and Oil Separator features a universal 1/4-inch NPT inlet and outlet and is made to be compatible for any compressor, air hose, pneumatic tools and spray guns. The separator has a maximum air pressure of 90 psi and serves as the gate keeper between your compressor and air tools. By filtering the water and oil and trapping it inside of the self-contained unit, the Oil water separator will ensure longevity in your tool collection and help you maintain air tools that perform at an optimal level every time.A must-have for tool enthusiasts, this inexpensive air tool accessory can save you hundreds and even thousands of dollars in replacement tools. Whether at your home garage, paint shop or mechanics shop this air filter dryer attached to your air compressor and is designed to remove all the liquid water, vapor, solid particles, trash, debris, oil, and oil vapor from the machine.