Actual dimensions are 12.13 x 19.88 x 4.25. Accumulair brand 12x20x4.5 Carrier FILBBFNC0014 replacement whole house air filters, specifically constructed to substitute for the name brand Carrier FILBBFNC0014 air filters. Fully constructed so no assembly or combs required. MERV rated to ASHRAE 52.2 test classifications establishing operation as good or better than the original manufacturer Carrier FILBBFNC0014 filter. Photo: Example air filter pic displayed is not the actual dimensions and is displayed for style purposes. Brand names and Carrier FILBBFNC0014 identifier shown for filter style purposes.
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