The Trane BAYSF1255BAA SlimFit filter rack is engineered for seamless compatibility with all new S-Series furnaces, offering side return support and fitting B-width cabinets in both upflow and downflow orientations. Crafted from sturdy 18-gauge painted metal, this low-profile filter box features a hinged front door for easy access, full insulation, and includes a 16" x 25" x 1" pleated MERV 4 filter. Key Features: Designed to fit S-Series furnaces with or without transitions for enhanced airflow Works in upflow/downflow setups on B-width cabinets without needing transitions Durable, painted 2” cabinet that matches the S-Series design Easy filter replacement with a hinged front door Pre-drilled holes and full gasketing for fast, secure installation Assembled in the USA, supports MERV 4/5 filters, lasting up to 90 days Compatible with Trane Service First and standard 16” x 25” filters
