21x23x1 Exact MERV 7 Plus Carbon AC Furnace Filters Number Per Box:6 Nordic Pure MERV 12 is

Nordic Pure MERV 12 is equivalent to MPR 1500-1900

Nordic Pure 12x24x4 MERV 13 Plus Carbon air filters are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that will attract and capture most airborne particulates in your home

Nordic Pure 16x20x4 Pleated Air Filters MERV 15 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home

Nordic Pure 18x20x2 MERV 7 Plus Carbon air filters are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that attracts and capture most airborne particulates in your home

Nordic Pure 14x25x1 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

21x23x1 Exact MERV 7 Plus Carbon AC Furnace Filters Number Per Box:6 Nordic Pure MERV 12 isActual Size: 21 x 23 x 3 4 (21 x 23 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 pleated