Actual dimensions are 20.25 x 25.38 x 5.25. Accumulair brand: 20x25x5 Gibson RAM2000 style whole house air filters, specifically built to replace original brand Gibson RAM2000 filters. Fully box-formed - no assembly or combs required. MERV classified to ASHRAE 52.2 test ratings assuring operation to the level of the name brand Gibson RAM2000 filters. Notice: The example filter pic shown is not to scale and is displayed for design purposes. Company names and Gibson RAM2000 P/N used for filter style identification purposes only.
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