POREX® Pneumatic Silencers can effectively reduce pneumatic equipment noise. The mufflers are engineered to provide an optimal balance between noise reduction and acceptable backpressure in the pneumatic system. The porous plastic silencers offer numerous advantages over metal acoustical silencers, including significantly lower weight, greatly improved corrosion resistance, ability to filter particles and aerosols, durability, assembly speed, and cost efficiency. They are offered in an extensive selection of sizes designed to fit most standard valves, including NPT, BSP, M5, and "push-in" styles. The silencers are also designed with a solid integrated threaded adapter to ensure easy mounting on pneumatic equipment.