Description
Actual dimensions are 19.88 x 24.88 x 4.38. Accumulair brand, 20x25x5 Lennox X5426 substitute whole house filters, specifically designed to substitute for the original manufacturer Lennox X5426 filters. Fully assembled - no forming or combs needed. MERV rated to ASHRAE 52.2 test classifications assuring particulate filtration equal to the name brand Lennox X5426 filters. Photo: Example filter pic displayed is not to scale and is shown for configuration purposes. Company names and Lennox X5426 part numbers displayed for air filter substitution identification purposes.