Features FOR PLACES WITH LIMITED SPACE: Small and simple structure, easy to install and maintain, especially suitable for places with limited space, possess high noise reduction effect EXCELLENT NOISE REDUCTION AND FILTERING EFFECT: Pneumatic muffler provide excellent noise reduction and filtering effect under dry conditions IMPACT RESISTANT: Metal silencer can be used in high temperature and high pressure environment and is impact resistant, very stable GOOD CORROSION RESISTANCE: Made of excellent brass material, with excellent thermal conductivity, ductility and corrosion resistance WIDELY USED: Widely used in cylinders, solenoid valves, crankcases, gear boxes, fuel tanks, pneumatic tools Specification: Item Type: Air Pneumatic Mufflers Model: PSF-8 Material: Brass + ABS Uses: Widely used in cylinders, solenoid valves, crankcases, gear boxes, fuel tanks, pneumatic tools Package List: 4 x Air Pneumatic Mufflers Note: Please match the appropriate size before use. Package List 4 x Air Pneumatic Mufflers