Actual size is 19.88 x 24.88 x 4.38. Accumulair brand, 20x25x5 Honeywell F100F1087 compatible whole house filters, exactly engineered to replace OEM Honeywell F100F1087 air filters. Fully built - no assembly or combs needed. MERV classified to ASHRAE grades assuring performance as good or better than the name brand Honeywell F100F1087 air filters. Note: Sample filter image as shown is not the actual dimensions and is shown for configuration purposes. Company names and Honeywell F100F1087 P/N shown for filter replacement identification only.
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