1. Air exhaust muffler is mainly used to reduce the output pressure of compressed gas, thereby reducing the noise when the gas is discharged. Not only can it be used for air compressor noise reduction, it can also be used for cylinders, valves, crankcases, gearboxes, oil tanks, fans, compressors, vacuum pumps, throttle valves, pneumatic tools and other systems that require mufflers to clean exhaust and reduce. 2. Pneumatic Muffler, Material: Plastic, Total Length: 98 mm, Diameter: 45 mm, Thread Diameter: 32 mm, Thread: G 1', In the Package : 2 x Pneumatic Exhaust Muffler 3. Pneumatic air muffler fittings is made of plastic, it is resistant to pressure, not easy to rust, corrosion resistant, good temperature ductility, strong and durable, long service life. Threaded pipe fittings are made of precision machining, with clear and deep threads, tight and anti slip, good sealing, leakage prevention, prominent nuts, not easy to be mixed with oil, easy to clean and maintain. 4. 1.Thread Installation: Screw the muffler's end directly into the exhaust port of valves, cylinders, or compressors. 2.Tighten Securely: Use a wrench to ensure a snug fit without over torquing (avoid damaging threads).