Description
Actual size is 16.63 x 26 x 4.13. Accumulair brand, 17x26x4 Lennox X6666 substitute whole house filters, specifically constructed to be an alternative to the original manufacturer Lennox X6666 filters. Fully assembled - no assembly or combs needed. MERV classified to ASHRAE 52.2 test specifications ensuring performance to the level of the name brand Lennox X6666 filter. Photo: The example air filter picture as shown is not to scale and is shown for design purposes only. OEM names and Lennox X6666 identifier shown for air filter style purposes.