Actual dimensions are 19.88 x 24.88 x 4.38. Accumulair brand: 20x25x5 Lennox BMAC-20C compatible whole house air filters, specifically designed to substitute for the name brand Lennox BMAC-20C air filters. Completely built - no assembly or combs required. MERV rated to ASHRAE 52.2 test classifications ensuring particle capture as good or better than the OEM Lennox BMAC-20C air filters. Notice: Sample filter image displayed is not the actual dimensions and is there to show style purposes only. Name brands and Lennox BMAC-20C identifier displayed for filter replacement identification purposes.
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