Tier1 Replacement for BDP 20x25x5 Merv 11 Air Filter 2 Pack Upgraded media rated at MERV 11 to capture 90% of particles, 1-3 microns in size Replacement for: Bryant FILBBCAR0020, FILBBFT0020, Carrier FILCCCAR0020, FILCCFTC0020 and KEAFL0303020 Original box type design This product is listed and rated by Underwriters Laboratories as U.L. Class 2