17.5x27x5 MERV 11 Trane/American Standard BAYFTFR17M Aftermarket Filters (2 Pack)
SpiroPure
21x23.5x5 MERV 11 Trane/American Standard BAYFTAH23M Aftermarket Filters (2 Pack)
SpiroPure
Trane/American Standard BAYFTFREXM Expandable Media Type Replacement Filter
Trane Parts
BAYFTAHEXM2 Perfect Fit 5 Filter Media Compatible with American Standard and Trane FLR06231 PerfectFit Filter HVAC Systems, 20 x 25 x 5 Expandable Filters MERV 13, Part no.BAYFTAHEXM2, 3 Pack
Roninby