Filter Features: To lower or maintain air pressure. The air pressure maintaining device performs vacuum compression by injecting air to effectively remove impurities, moisture and pollutants in pneumatic equipment. Composition: The filter cup is transparent, allowing you to accurately and quickly check the water and oil conditions. The filter element is made of high-quality materials, resistant to strong corrosion and has a long service life. At the same time, you can observe the pressure of the pressure gauge by controlling the pressure dial. Easy to use and install: The oil-water separator can effectively control and adjust the pressure dial to provide clean, dry and impurity-free air, ensuring that the compression equipment is not polluted. At the same time, it is light in size, portable, quick to install and maintain. Scope of use: The water-oil separator is widely used for air compressors. air, pneumatic tools, gas connection installation, effective filtration of air humidity. Size: Air separator regulator air compressor filter water 1/4'. Product description: 1. Air maintenance device: Constantly compressed air to ensure that the clean air is fully combined with the oil in the oil pipe, and at the same time, it can maintain effectively extend the life of the pneumatic device and avoid the entry of impurities. 2. Filter: Filter the air through the air filter element, which can change the key of impurities. 3. Lubrication bottle: Add oil to the oil cup from the oil filling screw as shown in the figure. When the product is working, the oil will be combined with the filtered air, and the atomized oil will be sent to the parts and components of the air tool to lubricate them and make them work properly. p> Product specifications: Product name: 1/4 inch NPT air filter pressure regulator Body material: aluminum product Notice: 1.Before installing the filter, please pay attention to cleaning the threaded ports and accessories of the filter to ensure that no impurities enter the system air. 2.The internal pressure is different from the external pressure at the beginning, and the excess pressure will be discharged, please wait, after exhausting the excess air. #39;air, no leakage will occur