Lennox Healthy Climate HCF20 MERV 16 replacement furnace filter - X6675. Filter dimensions: 20" x 25" x 5".

This MERV 16 X6675 filter from Lennox is the best media filtration available short of a HEPA system and does an outstanding job of removing particulates from the air stream, protecting your equipment and your health. The Lennox X6675 MERV 16 filter is a suitable replacement for the Lennox HCC20-28 air cleaner as well as many Honeywell, Carrier, and Trion Air Bear air cleaners that accept a 20" x 25" x 5" filter media.