Filter Hut 20x25x4 Top Tech () replacement air filters are specifically built to replace the original brand Top Tech 20x25x4 filters. Our air filters are MERV classified to ASHRAE 52.2 test classifications assuring that our filters will capture particulate as good or better than the name brand part number () air filter. These filters are available in Odor Ban odor isolating carbon media. *Name brands are listed for air filter replacement identification purposes only.
- 20 x 25 x 4 nominal size.
- 19-3/8 x 24-3/8 x 3-3/4 actual size.
- Replaces Top Tech brand 20x25x4 part number: .
- Quality Filters Envaero brand.
- Engineered to substitute for the OEM filter.
- Filters framed and preassembled for ease of intallation. (No need for extra combs, end-caps, etc.)
MERV rated to ASHRAE standards.
- Available with Odor Ban odor filtering carbon-infused technology.
- 3 filters to a case.