High Quality Materials: Made of metal. Greatly help to improve air compressor efficiency and longevity. Dust Proof: Air compressor muffler is used for air compressor inlet, can effectively block dust in the humidity of the air.Ideal accessories for air compressors, easy to install. Noise Reduction: Able to reduce the noise of the compressor at work and make the environment of work more comfortable. Wide Application: Suitable for oil-free air compressors and noisy devices such as small air compressor air pumps, fans, air filter cartridges, boilers. Package Content: 2 PCS 1/2" PT 20MM Air Compressor Silent Filter. < b>Product Specifications: Material: Metal + Filter Paper Color: Black Threaded Version: 1/2" Thread: 20 MM Muffler Height: 76 MM Quantity: 2 Other Benefits : Reduces compressor noise during operation Durable, it is the best choice for reducing compressor noise Use a silent filter to effectively block dust from the air Helps improve the efficiency and life of air compressors Easy to install, suitable for air compressors oil free air We are confident in the quality of our products and provide you with excellent customer service. If you are not completely satisfied with the purchase for its quality, please rest assured! Write to us and we will give you the perfect solution within 24 hours. Note: 1. 1-2cm deviation exists due to different measurement way. 2. Due to the difference between different monitors, the picture may not be the actual color of the item. Package Included:< /p> 2 x Air Compressor Silencers