These 20x20x5 Ultravation (91-028) substitute filters are specifically built to replace the name brand Ultravation 20x20x5 filters. Filter Hut air filters are MERV classified to ASHRAE 52.2 test standards ensuring that our air filters will capture debris as good or better than the name brand part number (91-028) air filters. Our air filters can be selected with Odor Ban odor eliminating carbon-inlayed material. *Brand names are used for air filter replacement identification purposes only.
- 20 x 20 x 5 nominal size.
- 19-11/16 x 20-11/16 x 4-7/8 actual size.
- Replaces Ultravation brand 20x20x5 part number: 91-028.
- Accumulair Envaero brand.
- Designed to replace the name brand filter.
- Filters framed and preassembled for ease of intallation. (Non-expandable, no end caps needed, etc.)
MERV classified to ASHRAE standards.
- Available in Odor Ban odor filtrating carbon media.
- 2 air filters to a case.