Nordic Pure 16x25x1M8MiniPleat-3 Tru Mini Pleat Merv 8 AC Furnace Air Filters (3 Pack), 16" x 25" x 1" Actual size of air filter: 15 1/2 x 24 1/2 x 7/8 Low air flow resistance Change every 90 days Hypoallergenic and antimicrobial pleated electrostatic filter material Made in the U.S.A