21.5x21x5 Honeywell TRN2121T1 Air Filter

Product Description
These 21.5x21x5 Honeywell (TRN2121T1) style filters are specifically built to substitue for the OEM Honeywell 21.5x21x5 air filters. These filters are MERV classified to ASHRAE 52.2 test ratings ensuring that our air filters will capture particulate as good or better than the OEM part number (TRN2121T1) filters. Our filters also come in Odor Ban odor reducing carbon-inlayed material. *Brand names are shown for air filter replacement identification purposes only.
  • 21-1/2 x 21 x 5 nominal size.
  • 21-1/16 x 19-1/2 x 4-15/16 actual size.
  • Replaces Honeywell brand 21.5x21x5 part number: TRN2121T1.
  • Envaero brand by Quality Filters.
  • Designed to substitute for the name brand filter.
  • Preassembled in frame for ease of installation. (Non-expandable, no end caps needed, etc.)
  • MERV rated to ASHRAE classifications.
  • Available with Odor Ban odor reducing carbon-inlayed properties.
  • 2 filters to a case.
Quantity of Filters in Case
Efficiency Rating
Quantity of Cases
$ 92.90 per case