Fine tuning the knob allows for precise setting of the output pressure, meeting the differentiated air pressure requirements of various pneumatic tools. Built in filter element can effectively filter out moisture, oil stains, and solid particles in compressed air. Simultaneously completing pressure regulation to provide clean, dry, and stable gas sources for downstream equipment. Effectively prevent overvoltage impact, extend the service life of downstream components, while ensuring consistent air pressure and reliable equipment operation. The shell is made of high-strength aluminum alloy, which is resistant to corrosion and aging., Manufacturer: wenwendianzi