Description
Actual Dimensions: 20.75 x 24.25 x 4.38. Accumulair brand 21x24x4.5 Rheem Protech 540014 substitute whole house air filters, specifically constructed to be an alternative to the original manufacturer Rheem Protech 540014 filters. Completely built so no assembly or combs required. MERV rated to ASHRAE 52.2 test standards assuring filtration as good or better than the name brand Rheem Protech 540014 filters. Photo: The example air filter pic displayed is not true to size and is included to show style only. Brand names and Rheem Protech 540014 P/N are used for filter style identification use.