Actual size is 20.75 x 20.25 x 5.25. Accumulair brand: 20x20x5 Nordyne N-NC2020 replacement whole house filters, exactly designed to replace original manufacturer Nordyne N-NC2020 air filters. Fully assembled - no assembly or combs needed. MERV rated to ASHRAE 52.2 test specs establishing particle capture equal to the original brand Nordyne N-NC2020 air filter. Photo: The sample air filter pic shown is not true to size and is shown for design purposes. Brand names and Nordyne N-NC2020 identifier shown for air filter style identification use.
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