Description
Actual dimensions are 20.13 x 26 x 3. Accumulair brand 20x26x3 Lennox X5422 substitute whole house filters, exactly built to substitute for the original manufacturer Lennox X5422 air filters. Fully built with no forming or combs needed. MERV rated to ASHRAE 52.2 test specifications assuring particulate filtration equal to the original brand Lennox X5422 filters. Photo: Example filter picture shown is not to scale and is shown for construction only. Trade names and Lennox X5422 part numbers used for filter replacement identification purposes.