Nordic Pure 20x25x5L2M8-2 MERV 8 Lennox X6675 Replacement Air Filter , 20x25x5, Box of 2 Actual Size: 19-7/8 x 24-7/8 x 4-3/8 High Quality air filter for your Lennox unit Outperforms comparable fiberglass and washable filters Hypoallergenic and antimicrobial pleated electrostatical filter material Made in the USA