Lennox has upgraded this filter from a MERV 10 to a MERV 11 still the same size, but even better filtration effectiveness!

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This MERV 11 X6673 filter from the Lennox Healthy Climate filters line offers a 98% efficient filtration media, capturing particles as small as 0.3 microns, preventing them from collecting on your coils and entering your home.

Lennox Healthy Climate filters are a high-efficiency alternative to one-inch filters. The larger media capacity of the Lennox X6673 filter allows for greater dust-holding ability. Keep more harmful contaminants out of your home to ease asthma and allergy symptoms. Also, keep surfaces throughout the home cleaner, as your filter removes them for you!

The Lennox X6673 MERV 11 filter is a suitable replacement filter for the Lennox HCC20-28 Air Cleaner as well as many other Trion Air Bear, Honeywell and Carrier Air Cleaners that accept a 20" X 25" X 5" filter media. Lennox Healthy Climate filters model X6673 is designed to fit the following air cleaner models:

• Trion Air Bear: 453000-001, Supreme 2000, 455602-001, 447380-002
• Carrier: EZXCAB020, FILCABCC0020, MPKA0020, MPKA, MACA
• Honeywell: F25A1068, 1067, 1024, F100-1037, 1032, 1038, 2010, 2044, F150E-1034, F200E-1037