Actual dimensions are 19.88 x 24.88 x 4.38. Accumulair brand, 20x25x5 Honeywell F35Expandapac style whole house filters, exactly constructed to replace original manufacturer Honeywell F35Expandapac filters. Completely constructed with no assembly or combs needed. MERV rated to ASHRAE 52.2 test grades establishing function to the level of the name brand Honeywell F35Expandapac air filters. Note: The sample filter image shown is not the actual dimensions and is there to show construction purposes only. Trade names and Honeywell F35Expandapac part numbers shown for filter replacement identification use.
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