Product Review

Replaces standard 14x20x1 sized disposable filters. Standard filters are generally undercut 3/8 inch. The actual size of this filter is 13-5/8 x 19-5/8 x 7/8. In the center, non-woven layer retains debris in a maze of fibers designed to maximize air flow even when soiled. Rated by independent testing laboratory at over 65% peak arrestance (particle filtering efficiency), this filter has 20 times the filtering capabilities of a disposable fiberglass filter.Highest filtering efficiency available for the majority of furnaces and air conditioners. 100 % BEST QUALITY GALVANIZED SHEET