5'' Media Filter (1 Year Subscription) - Canada HVAC
Lennox Healthy Climate 20x25x5 x6673 MERV 11 Box Filter - On Sale - Bed Bath & Beyond - 34489338
Lennox X6673 - Compatible 20x25x5 Furnace Air Filter | PureFilters
Nordic Pure 20x25x5LXREDM13+C-1 Lennox X6673_X6675 Replacement MERV 13 Plus Carbon Filter : Amazon.ca: Automotive
Healthy Climate X6673 HCF20-11 MERV 11 20x25x5. Actual Size 19 3/4" x 24 3/4" x 4 3/8". Case of 3 Made in Canada by Furnace Filters.Ca : Amazon.ca: Home
Lennox X6673 MERV 13 20x25x5 Replacement Filter. Actual Size 19 3/4" x 24 3/4" x 4 3/8." Made in Canada by Furnace Filters.Ca Pkg. of 3
AirPurete Furnace Filters | Actual size : 19-3/4" x 24-3/4" x 4-3/8" | Nominal size : 20x25x5 | PACK OF 3 FILTERS | Replaces Lennox models: X6673 (HCF20-11) | Replaces Honeywell models: FC100A1037 : Amazon.ca: Home
Atomic X6673 MERV 11 Lennox Compatible Air Cleaner Filter Media for HC