Parts List: 2 x Air Compressor Silencer 2 x Filters Product Specification: Product Description This is a great option for reducing the noise of your filter and is a great replacement option. Perfect accessories for air filters, quite easy to install. Used widely on the admitting port of air filters, can greatly reduce the noise of air intake. Key Features: This is air compressor muffler, used on the admitting port of the air compressor, able to reduce the filter noise at work. Black metal construction, plastic filter inside, compressor muffler use for admitting port. Easy to install by the thread. Greatly help to improve the efficiency of air filter and longevity. Specifications: Product Name: Air Compressor Silencer Material: Air Compressor Silencer: Metal, Filter Cartridge: Plastic Color: Black Size: Filter Cartridge: 62 x 70 mm/2.44 x 2.76 inch, 59 x 25 mm/2.32 x 0.98 inch (filter element) Thread diameter: 13mm/1/4BSP, 16mm/3/8 BSP, 20mm/1/2BSP (optional) Suitable for: oil-free air compressor Note: 1. There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color. 2. Please allow slight dimension difference due to manual measurement.