Honeywell Home 16x25x4 MERV 8, AC Furnace Air Filter, 1 PACK (CF408F1625-1PKAM)(Actual Dimensions: 15.63 x 24.75 x 4.38 in.) 1 Filter

MERV 8 rating-up to 20 times more efficient than typical 1 in. fiber glass filter, Captures high percentage of house hold airborne particles, including microscopic particles you can't see, Filters dust, mold, pollen, and smoke, Electrostatically charged pleated design with a cardboard frame, Lasts 12 months. Actual dimensions are 15.63 x 24.75 x 4.38 (in.)