13x21.5x1 Exact Size MERV 12 Plus Carbon Air Filter Number Per Box:6 5 and 6-inch thick filters

5 and 6-inch thick filters could last up to 6 months

Nordic Pure 10x10x1 MERV 8 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

Nordic Pure 10x20x2 MERV 10 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

Unlike other A/C filters where the nominal and actual sizes differ by a fraction of an inch

13x21.5x1 Exact Size MERV 12 Plus Carbon Air Filter Number Per Box:6 5 and 6-inch thick filtersActual Size: 12 3 4 x 21 1 2 x 3 4 (12. 75 x 21. 5 x 0. 75) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, virus carriers, mold spores, help eliminate unwanted odors and other contaminants. Ideal for customers who not only need odor control but whose daily life demands high filtration Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 12 is equivalent to MPR 1500