NaturalAire SM1006 Cut-to-Fit Synthetic Air Filter, MERV 4, 20 x 30 x 1-Inch, 6-Pack, Color may vary 6 Count (Pack of 1) Smilie Cut-to Fit

Pack of 6 reusable air filters made of synthetic fibers MERV 4 rating: Removes household dust, pollen, and lint Air filter can be cut to size using heavy shear or a razor knife Filter maintains efficiency for up to 1 year Ideal replacement for hard to find specialty filters measuring 20" x 30" or smaller