These 21.5x21x5 Trane/American Standard (BAYFTAH21M) substitute filters are specifically designed to replace the original manufacturer Trane/American Standard 21.5x21x5 air filters. Filter Hut's filters are MERV classified to ASHRAE 52.2 test grades assuring that our filters will perform as good or better than the name brand part number (BAYFTAH21M) filters. Our air filters are available in Odor Ban odor filtrating carbon-inlayed material. *Company names are shown for air filter style 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 Trane/American Standard brand 21.5x21x5 part number: BAYFTAH21M.
- Accumulair Envaero brand.
- Designed to replace the original manufacturer filter.
- Preassembled in frame for ease of installation. (No end caps needed, don't need expanded with combs, etc.)
MERV tested to ASHRAE grades.
- Available in Odor Ban odor capturing carbon material.
- 2 filters per case.