Quality Assurance: 100% brand new and high quality. Light weight, small size, easy installation and maintenance. Can filter small particles and keep the air clean. Principle: The air filter regulator is the one that adjusts the main air duct to a pressure value that the control device requires after pressure relief filtration Control the pressure element and delay, overflow regulator. Features: Copper filter material, finer filter and longer service life. Polymer material capacity cup, high strength, heat resistance is not easy to aging, good sealing, waterproof, no air leakage. Multiple application: air compressors, pneumatic tools, gas connection installation, effective filtering of air humidity, suitable for construction machinery, teaching experiments, equipment, engineering, etc. Installation: The piping should be installed in the direction indicated by the arrow on the valve body, which is the same as the direction of gas flow. Specification: Material: Metal, Plastic Connection