The Magnet BAYFTDN21M is compatible with Trane American Standard Perfect Fit Air Cleaner Media.
Size: 21x21x5. Replaces: BAYFTDN21M2 (FLR07966) PLEASE NOTE: This is for a Down Flow furnace model only. NOTE: This listing is for two (2) Trane BAYFTDN21M replacement filters made by Magnet
The Magnet logo on this page signifies that this product is a factory direct replacement to the OEM branded filter.