Description
Actual size is 16.63 x 26 x 4.13. Accumulair brand, 17x26x4 Lennox X6664 substitute whole house air filters, specifically constructed to substitute for the OEM Lennox X6664 air filters. Fully constructed with no assembly or combs needed. MERV rated to ASHRAE classifications ensuring particulate capture to the level of the original brand Lennox X6664 filters. Note: The example filter picture shown is not to scale and is shown for configuration purposes only. Trade names and Lennox X6664 P/N are included for filter style identification.