The Trane BAYFTAH21M2 is the correct replacement filter for the following air cleaner models:
The Trane BAYFTAH21M2 Replacement Air Filter 21.5x21x5 fits the TFM215B0AH0 Perfect Fit High Efficiency Air Cleaner. This Trane Perfect Fit filter has a MERV 8 rating that helps purify your air and improve overall indoor air quality. Measuring approximately 21" x 21.5" x 5", this Trane air filter should be changed every 6 months to achieve the best results.
Trane BAYFTAH21M2 Replacement Air Filter 21.5x21x5 specifications: