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Lennox Healthy Climate HCF16 Merv 10 replacement furnace filter - X6670. Filter dimensions: 16" x 25" x 5". The Lennox X6670 MERV 10 Replacement Filter fits the X6660 HCC16-28 Air Cleaner. This MERV 10 X6670 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 X6670 MERV 10 filter is a suitable replacement for the Lennox HCC16-28 Air Cleaner as well as many other Lennox, Honeywell and Carrier Air Cleaners that accept a 16" X 25" X 5" filter media.

The Lennox X6670 filter is designed to fit the following air cleaner models (some gasketing may be required for brands other than Lennox):

Lennox: HCC16-28, HCC16-28, HCXF16-16, HCF16-16, HCF16-10
Carrier: EZXCAB016, FILCABCC0016, MPKA0016, MACPAK, MPKA, MAC
Honeywell: F25A1043, F25F1042, F35F1008, F100F1012, F150E1026