The PneumaticPlus Bronze Exhaust Muffler did wonders for my COMPRESSED air system. Industrial and Scientific, this muffler fits perfectly and performs flawlessly. According to my experience, this muffler is well-constructed easy to install, and significantly reduces the noise of my system. The only downside I've found is that it may decrease the airflow slightly, but it's a small trade-off for such an effective silencer. Overall, I highly recommend this muffler for anyone looking to minimize noiSee full review