Lennox X6673 – Compatible Air Filter 20x25x5 MERV 11

Lennox X6670 – Compatible Air Filter 16x25x5 MERV 11

Lennox X0585 – Compatible Air Filter 20x20x5 MERV 11

Honeywell FC100A1037 – Compatible Air Filter 20x25x4 MERV 11

Honeywell FC100A1011 – Compatible Air Filter 20x20x4 MERV 11

Honeywell FC100A1029 – Compatible Air Filter 16x25x4 MERV 11

Aprilaire 201 / Space-Gard 201 Replacement Filter 25x20x6 MERV 10

Pleated Furnace Filters – 16x25x1 – MERV 8

Pleated Furnace Filters – 16x25x1 – MERV 13

Pleated Furnace Filters – 16x25x1 – MERV 11

Pleated Furnace Filters – 20x20x1 – MERV 8

Pleated Furnace Filters – 12x24x1 – MERV 8