Actual Size: 20.75 x 20.25 x 5.25. Accumulair brand, 20x20x5 Day and Night CMF2020 replacement whole house filters, specifically engineered to replace the name brand Day and Night CMF2020 air filters. Completely assembled - no assembly or combs needed. MERV classified to ASHRAE 52.2 test classifications assuring particulate filtration equal to the original manufacturer Day and Night CMF2020 air filter. Note: Sample filter picture as displayed is not true to size and is shown for design purposes only. Trade names and Day and Night CMF2020 part numbers are used for filter replacement identification only.
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