16x25x5L1M8-1 Lennox X6670 Replacement MERV 8 AC Furnace Air Filter, QTY 1 Actual Size: 15-3/4 x 24-3/4 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