The Trane BAYFTFREXM2 filter requires the following for use:
The Trane BAYFTFREXM2 Expandable Replacement Media is a furnace air filter that can only be used with a Retrofit Frame Kit already installed. This Trane air filter measures approximately 25" in length x 5" in thickness. This Trane Perfect Fit filter is expandable and receives a MERV 8 rating for the improvement of your overall indoor air quality through the reduction of contaminants. This Trane furnace filter is an OEM replacement part and has a filter life of 6 months.
Trane BAYFTFREXM2 Expandable Replacement Media specifications: