Features 1、This muffler is made of high quality brass material, durable in use 2、The silencers are used to reduce dynamic noise of the pneumatic components or device exhaust 3、Easy installation and high noise reduction result, quick and reliable connections 4、Used for Cylinders, Valves, Crank cases, gear boxes, oil tanks, reservoirs, air tools 5、Filtering exhaust and intake air from potential dirt and foreign particles, thus prolonging valve's life Specification Features: This muffler is made of high quality brass material, durable in use. The silencers are used to reduce dynamic noise of the pneumatic components or device exhaust. Easy installation and high noise reduction result, quick and reliable connections. Used for Cylinders, Valves, Crank cases, gear boxes, oil tanks, reservoirs, air tools. Filtering exhaust and intake air from potential dirt and foreign particles, thus prolonging valve's life. Specifications: Material: brass Thread: 1/8 BSP External thread size: 9.5±0.2mm Working Pressure: 0-1.6Mpa Length: 3cm / 1.18in Weight: 76g Package included: 5 x Muffler Package List