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Lennox Healthy Climate HCF16 Merv 10 replacement furnace filter - X6673. Filter dimensions: 20" x 25" x 5". The Lennox X6670 MERV 10 Replacement Filter fits the X6660 HCC20-28 Air Cleaner. This MERV 10 X6673 filter from Lennox offers a 98% efficient filtration media capturing particles as small as 0.3 microns before they can collect on your coils. High-efficiency alternative to one-inch filters. It's larger media capacity allows for greater dust-holding ability. The Lennox X6673 MERV 10 filter is a suitable replacement 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.

The Lennox X6673 filter is designed to fit the following air cleaner models (some gasketing may be required for brands other than Lennox):

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