2 Pack of X6670 Lennox OEM Merv 11 Filter Media 16"X25"X5" Fits X6660 HCC16-28 Genuine Lennox X6670 Go to amazon.com Related posts How to find the best furnace filters 16x25x5 for 2022? FeatureMERV 11Actual Size: 15-3/4" X 24-3/4" X 4-3/8"2 FiltersNominal Size: 16" x 25" x 5"Manufactured by Lennox DescriptionLennox Genuine OEM Replacement Media Filter 16x25x5 (MERV 11) Fits Lennox Model X6660, HCF16-10, HCC16-28. (2-Pack Special)