Actual dimensions are 23.75 x 24.75 x 4.38. Accumulair brand: 24x25x5 24x25x5 Maytag replacement whole house filters, specifically constructed to be an alternative to the original manufacturer 24x25x5 Maytag filters. Fully box-formed so no forming or combs required. MERV rated to ASHRAE specifications assuring function as good or better than the name brand 24x25x5 Maytag filter. Note: Example filter picture shown is not true to size and is included to show style purposes only. Name brands and 24x25x5 Maytag part numbers included for filter style identification use.