Actual dimensions are 19.88 x 24.88 x 4.38. Accumulair brand: 20x25x5 Honeywell F100F2010 replacement whole house air filters, specifically constructed to substitute for the name brand Honeywell F100F2010 filters. Completely constructed - no forming or combs needed. MERV rated to ASHRAE 52.2 test classifications ensuring particulate capture as good or better than the OEM Honeywell F100F2010 filters. Notice: Sample air filter picture displayed is not the actual dimensions and is shown for construction purposes. OEM names and Honeywell F100F2010 P/N are included for air filter replacement identification purposes.
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