Comprehensive Package: providing a complete solution for immediate and long term maintenance; This comprehensive package means less time searching for compatible parts Function: this muffler is mainly for filtering the incoming air; It can effectively block moisture and dust in the air, enhance the efficiency of the air compressor, extend its service life Optimized Size for Efficiency: measuring Filter 1/2 inch, Filter Noise Muffler Elements 20 mm, these filters fit seamlessly into a wide range of air compressors, ensuring optimal airflow and performance; This size specification caters to the majority of user needs Material: the muffler is made of coated metal casing and heavy duty paper material; It is sturdy, , and can be applied for a long time; When purchasing, please check the size suitable for your machine Wide Range of Applications:the air filter assembly can be applied in the original filter replacement of noise equipment such as the exhaust ports of generators,boilers, blowers,and air compressors;Installation is simple and convenient;It can be directly connected to the air intake port for use Color: As Shown Material: Metal Package Contents: 4 * Air Compressor- 8 * filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.