The frame has 2 strips of foam tape on 2 sides
As with all Nordic Pure furnace air conditioner filters
Ideal for residential customers in apartments
Nordic Pure 15x20x1 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
polyester material with an added layer of smooth poly-blend electrostatic filter media
20x27x1 Exact MERV 12 Plus Carbon AC Furnace Filters Number Per Box:6 The frame has 2 stripsActual Size: 20 x 27 x 3 4 (20 x 27 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 1900 Made in the