Description
Actual size is 20.75 x 24.25 x 4.38. Brand: Accumulair. 21x24x4.5 Rheem Protech 540014 substitute whole house filters, exactly designed to replace original manufacturer Rheem Protech 540014 filters. Completely built with no forming or combs required. MERV rated to ASHRAE ratings assuring particle capture equal to the original brand Rheem Protech 540014 air filters. Photo: Sample air filter picture shown is not to scale and is shown for construction only. OEM names and Rheem Protech 540014 P/N are listed for filter substitution identification use.