Spring Type Adjustable Air Muffler Pneumatic Muffler, 10PCS Brass Pneumatic Muffler Threaded Pneumatic Muffler BSPT Male Thread Solenoid Valve, Compressed Air Pneumatic Mufflers (1/4 BSPT Threaded Air Silencer [Spring-type design] The spring-type muffler can be adjusted according to the air pressure. Additional details. 2pcs Exhaust Muffler Thread (1/8"1/4"3/8"1/2") Pneumatic Silencer Brass Connector BSLM-01/02/03/04 for Solenoid Valve Fitting 01(1/8) =9.7mm [High-quality brass] This pneumatic muffler is made of high-quality brass material to prevent rust and corrosion. The muffler is made of premium brass material, rust and resistant. Easy installation and high noise reduction result, quick and reliable connections. BSPT male thread, tight connection, not easy leaking. Spring-type silencer adjustment, which adjusts the force of silence required according to the air pressure. Effectively reduce noise for pneumatic equipments. See more product details Specification: Item Type: Pneumatic Muffler Material: Brass Optional Thread:, BSPT 1/8in, BSPT 1/4in, BSPT 3/8in, BSPT 1/2in Package List: 10 x Pneumatic Muffler Exhaust muffler male thread M5 1/8 1/4 3/8 1/2 We strive to provide you with high quality and convenient service.