Tier1 Replacement for Carrier 20x25x5 Merv 8 FILCCCAR0020 Air Filter 2 Pack Rated at MERV 8 to capture particles 3-10 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