Get the most bang for your buck out of your high-quality filters by changing them out before they get overloaded, but not before theyâ‚¬â„¢ve been fully used! This handy gadget tells you when they're ready to be switched out. It can even be installed remotely if your unit is in a hard-to-get-to place.
This air filter gauge provides a visual indication of the need to replace the air filters in forced air heating and cooling systems.
Includes 1 G-99 filter gauge and 1 remote installation kit.