4 Seasons Furnace Filter - Merv 7 - Most sizes up to 20"
Simply remove your existing filter and replace it with the 4 Seasons Air Filter. No tools or modifications necessary. The tapered shape allows the 4" depth to extend into the airway. The rim gasket holds the filter in place and forms a seal to maximize filtration. The 4 Seasons Air Filter quickly and easily "converts" your return air from the use of a 1" filter to this new and innovative 4" design.
Merv 7 4 Seasons Furnace filter- a filter that gives you:
- 4 times the media surface area
- 4 times the dust collecting capacity
- 4 times the service life
