American Standard BAYFRAME210A Expandable Media Frame. This filter frame is made to be installed inside an existing Perfect Fit air cleaner. Frame is made of PVC and is designed to reduce the cost of replacing your existing 5 thick Perfect Fit cardboard box filters. To upgrade to this system you need one of these and then for future media replacements you only need to purchase the expanded media to install in this frame. Trane/American Standard BAYFRAME210A Frame Kit With Filter (AKA FRM01431) TFM210A0FR0.
