Johnson Controls A-4000-146 Charcoal Air Filter 20 SCFM 1/2" Connection

The Johnson Controls A-4000-146 is a charcoal filter that is used in removing odors and gaseous contaminants from air streams in the residential and commercial HVAC systems. This is done by capturing these undesirable molecules within the interstitial spaces of the activated carbon media. This is an easily replaceable filter that is designed to work with a wide range of HVAC equipment and thus provide clean fresh air in your living or working environment. The filter removes odors and gaseous contaminants to enhance the quality of air to breathe and make the atmosphere comfortable.