Bryant/Carrier Direct Replacement Filter for FILXXFNC0017(4-C-1620) (2-pack) Merv 8 rating Nominal size 16 x 20 x 4 1/4 (Actual size 15 1/2 x 19 3/4 x 4 5/16) Ideal for removing both ordors and dust Removes odors from cooking, new paint, new carpet, bathroom, cigarette smoke, and pet odors. Filter is thicker to provide greater air flow