Actual Dimensions: 20.25 x 25.38 x 5.25. Accumulair brand 20x25x5 Kelvinator MU2025 replacement whole house filters, specifically constructed to substitute for the original manufacturer Kelvinator MU2025 filters. Completely box-formed - no forming or combs needed. MERV rated to ASHRAE specifications assuring particulate capture as good or better than the OEM Kelvinator MU2025 air filters. Note: Sample filter pic displayed is not true to size and is there to show construction purposes. OEM names and Kelvinator MU2025 part numbers are included for filter replacement identification purposes.