Description
Actual Size: 20.1 x 21.1 x 5. Accumulair brand, 21x21.5x5 Honeywell TRN2121T1 style whole house air filters, exactly constructed to be an alternative to the original manufacturer Honeywell TRN2121T1 filters. Completely assembled - no assembly or combs required. MERV classified to ASHRAE 52.2 test ratings establishing particle filtration equal to the OEM Honeywell TRN2121T1 air filter. Note: The example air filter picture as shown is not true to size and is included to show construction purposes only. OEM names and Honeywell TRN2121T1 part numbers displayed for filter replacement identification use.