Eco-Aire 4" Air Filters

Eco-Aire’s 4" filters are available in many standard and non-standard sizes. Simply select your size from the drop down box below to choose your filter size. Keep in mind that length and width are reversible (i.e. a 15x20x4 is the same as a 20x15x4). After you select your size, you will be able to choose between the different media types that are available for your selection.

Note: We do not recommend using our 4" air filters as replacements for Trion Air Bear, Honeywell, Trane, or Space-Gard filters that usually run in 5" and 6" depths. These 4" air filters are meant for commercial applications as well as those customers looking for increased efficiency in their homes if their air return can specifically support a 4" filter.

Don't see your size listed? Don't worry, we can make any size! Click below to be taken to the custom air filter order generator.