The Trane BAYFTFR24W1A is a pre-filter for use in the following application:
The Trane Perfect Fit BAYFTFR24W1A Prefilter 24.5x27x1 has a nominal size of 24 1/2 inches x 27 inches x 1 inch. The actual size of this Trane pre-filter is 24 1/2 inches x 26 1/4 inches x 3/4 inch. This Trane perfect fit filter comes as two filters that measure approximately 12 7/8 inches x 24 1/4 inches each. This Trane air filter is a slide in media filter that can be washed and re-used.
The Trane BAYFTFR24W1A specifications: