1Dial Design: This air filter pressure regulator comes with a dial that allows you to strong out the air pressure of the filter which is easy to operate. 2Easy Installation: With its 1/4inch interface size, this oil trap separator can be easily connected to your air compressor system. The differential pressure drainage method allows for convenient drainage of collected oil and water. 3Efficient Filtration Performance: The oil water separator effectively filters out oil and water particles from the air with a filtration accuracy of 40uM. This ensures cleaner and drier compressed air for your pneumatic tools and applications. 4Durable Construction: Made from excellent aluminum alloy, PC, and plastic materials, this compressed air line filter is sturdy and long lasting, ensuring reliable performance over time. 5Wide Application: Designed for use with air compressors, this air drying system is suitable for a wide range of applications, including pneumatic tools, airbrushing, painting, and more. It effectively helps improve the quality of compressed air. 1 x Compressed Air Filter 1 Pair x Connector 1 x Dial 1 x Manual