American Standard / Trane PerfectFit Accordian Air Filter Replacements
MERV Rating Information
These are OEM replacement cartridges for American Standard / Trane BAYFTAHEXM2 (approx 21" wide) and American Standard / Trane BAYFTFREXM2 (approx 27" wide). The Trane retrofit plastic frame kit is required in order to use these filters in your whole house system. If you do not have the plastic retrofit frame, then you need to look at our 5" perfect fit filters that come in a traditional cardboard frame. Before ordering, please make sure that you measure the length of your retrofit plastic frame. In our warehouse, we actually have to label these as small trane (bayftahexm2, 21") and BIG TRANE (BAYFTFREXM2, 27") in order to keep them straight. Sometimes, you will see these referred to as: BAYFTAHEXM2 = BAYFTAHEXM, BAYFTAHEXM2A, FLR06231BAYFTFREXHM2 = BAYFTFREXM, BAYFTFREXM2A, and FLR06232. These are the exact same part numbers so do not worry. Note: Our pricing is for a 2-pack, so the price you see is for 2 replacement cartridges. These are 6-month filters so each order should last for 1-year for 1-unit. Both of these cartridges are 5" wide pleats. As always, if you have any questions, please contact our customer service department before ordering and we will make sure you get the right filter for you.