20x20x5 Honeywell 203721 Air Filter

Product Description
This 20x20x5 Honeywell (203721) compatible filters are specifically built to substitue for the original brand Honeywell 20x20x5 filters. Filter Hut's filters are MERV classified to ASHRAE 52.2 test grades ensuring that our air filters will capture dust as good or better than the OEM part number (203721) filters. These filters also come in Odor Ban odor reducing carbon-infused media. *Brand names are used for air filter style identification purposes only.
  • 20 x 20 x 5 nominal size.
  • 19-9/16 x 20-1/16 x 4-3/8 actual size.
  • Replaces Honeywell brand 20x20x5 part number: 203721.
  • Envaero brand by Quality Filters.
  • Designed to substitute for the original manufacturer filter.
  • Preassembled in frame for ease of installation. (No need for extra combs, end-caps, etc.)
  • MERV tested to ASHRAE ratings.
  • Available in Odor Ban odor filtrating carbon technology.
  • 2 filters to a case.
Quantity of Filters in Case
Efficiency Rating
Quantity of Cases
$ 55.90 per case