Description
Actual dimensions are 19.88 x 24.88 x 4.38. Brand: Accumulair. 20x25x5 Lennox X6661 replacement whole house air filters, specifically designed to replace the OEM Lennox X6661 air filters. Fully assembled with no assembly or combs needed. MERV rated to ASHRAE 52.2 test specs establishing performance as good or better than the original manufacturer Lennox X6661 air filter. Photo: Sample filter pic as displayed is not to scale and is displayed for configuration only. Company names and Lennox X6661 P/N shown for air filter replacement purposes.