Description
Actual dimensions are 20 x 20.63 x 4.38. Brand: Accumulair. 20x21x5 Lennox X8790 replacement whole house filters, exactly engineered to substitute for the original brand Lennox X8790 filters. Completely constructed with no assembly or combs required. MERV rated to ASHRAE grades ensuring function equal to the OEM Lennox X8790 air filters. Notice: The example filter image shown is not to scale and is included to show design purposes only. Trade names and Lennox X8790 identifier included for filter style purposes only.