Description
Actual dimensions are 20.75 x 24.25 x 4.38. Accumulair brand: 21x24x4.5 Rheem Protech 540014 compatible whole house filters, exactly designed to replace the original manufacturer Rheem Protech 540014 air filters. Completely assembled with no forming or combs required. MERV classified to ASHRAE 52.2 test grades assuring particle filtration as good or better than the original manufacturer Rheem Protech 540014 filter. Notice: The example air filter picture shown is not to scale and is included to show construction purposes only. Company names and Rheem Protech 540014 P/N are shown for filter substitution identification purposes.