Actual Dimensions: 19.88 x 22.63 x 4.25. Accumulair brand: 20x23x4.5 Carrier FILBBFNC0024 compatible whole house filters, exactly designed to substitute for the original manufacturer Carrier FILBBFNC0024 air filters. Fully box-formed with no forming or combs required. MERV classified to ASHRAE 52.2 test standards assuring operation as good or better than the OEM Carrier FILBBFNC0024 filter. Note: The example filter image as shown is not to scale and is shown for style purposes only. OEM names and Carrier FILBBFNC0024 part numbers included for filter replacement identification purposes.
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