Tier1 Replacement for Carrier 16x25x5 Merv 13 FILCCCAR0020 Air Filter 2 Pack Upgraded media rated at MERV 13 to capture 90% of particles, 1 microns or smaller in size Replacement for: Bryant FILBBCAR0016, FILBBFTC0016, Carrier FILCCCAR0016, FILCCFTC0016 and KEAFL0203012 Original box type design This product is listed and rated by Underwriters Laboratories as U.L. Class 2