17 1/2x21x1 Exact MERV 7 Plus Carbon AC Furnace Filters 12x24x 1/2 For example

For example

With its two layers

Nordic Pure 18x20x1 MERV 12 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 MERV 12 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments

Nordic Pure 16x24x4 Pleated Air Filters MERV 8 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home

17 1/2x21x1 Exact MERV 7 Plus Carbon AC Furnace Filters 12x24x 1/2 For exampleActual Size: 17 1 2 x 21 x 3 4 (17. 5 x 21 x 0. 75) Captures large airborne particles like lint, household dust, pollen, dust mites, mold spores and other contaminants. This dust reduction air filter is ideal in keeping your AC and furnace equipment working efficiently and helps reduce odors Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 7 is equivalent to MPR 600 Made in the USA. Nordic Pure