19x21x1 MERV 7 Plus Carbon AC Furnace Filters Number Per Box:6 allergens and other contaminants are

allergens and other contaminants are removed

Important Note: Almost ALL furnace filters have a different "actual size" than the nominal size printed on the air conditioner filter

Nordic Pure 10x20x1 MERV 13 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 MERV 12 Pleated AC Furnace Air Filters provide exceptional filtration for both home and commercial environments

We recommend that you change your air filter every 30-90 days to maintain maximum efficiency and economy

19x21x1 MERV 7 Plus Carbon AC Furnace Filters Number Per Box:6 allergens and other contaminants areActual Size: 18 1 2 x 20 1 2 x 3 4 (18. 5 x 20. 5 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.