Description
Actual dimensions are 20.75 x 20.75 x 4.38. Accumulair brand: 21x21x4.5 Rheem RXHF-E21AM10 substitute whole house air filters, specifically constructed to substitute for the original brand Rheem RXHF-E21AM10 filters. Completely assembled - no assembly or combs needed. MERV classified to ASHRAE ratings establishing particle capture as good or better than the name brand Rheem RXHF-E21AM10 filter. Notice: Example air filter image as displayed is not to scale and is there to show design purposes only. Brand names and Rheem RXHF-E21AM10 identifier included for filter replacement identification use.