Description
Actual Size: 20.75 x 20.75 x 4.38. Accumulair brand: 21x21x4.5 Rheem RXHF-E21AM13 compatible whole house filters, exactly constructed to replace the name brand Rheem RXHF-E21AM13 filters. Completely assembled - no forming or combs required. MERV classified to ASHRAE specifications establishing particulate filtration equal to the OEM Rheem RXHF-E21AM13 air filter. Notice: The example air filter pic displayed is not to scale and is there to show configuration only. OEM names and Rheem RXHF-E21AM13 identifier are listed for filter style identification purposes only.