Actual size is 20.75 x 20.25 x 5.25. Accumulair brand, 20x20x5 Electro-Air 9183960 compatible whole house filters, specifically constructed to be an alternative to the original brand Electro-Air 9183960 air filters. Fully built so no assembly or combs required. MERV rated to ASHRAE 52.2 test standards ensuring filtration equal to the name brand Electro-Air 9183960 air filter. Photo: The example filter pic displayed is not true to size and is displayed for construction purposes. OEM names and Electro-Air 9183960 identifier shown for filter replacement identification purposes.
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