Filter Hut's 20x25x5 General Aire (4501) compatible air filters are specifically designed to replace the original brand General Aire 20x25x5 air filters. Filter Hut air filters are MERV graded to ASHRAE 52.2 test standards ensuring that our filters will capture particulate as good or better than the OEM part number (4501) filter. These air filters can be selected with Odor Ban odor reducing carbon material. *OEM names are listed for filter substitution identification purposes only.
- 20 x 25 x 5 nominal size.
- 19-1/2 x 24 x 4-3/4 actual size.
- Replaces General Aire brand 20x25x5 part number: 4501.
- Quality Filters Envaero brand.
- Specifically designed to substitute for the name brand filter.
- Preassembled in frame for ease of installation. (Non-expandable, no end caps needed, etc.)
MERV graded to ASHRAE grades.
- Available in Odor Ban odor filtering carbon technology.
- 2 filters to a case.