20x21 1/2x1 Exact MERV 10 AC Furnace Filters Number Per Box:6 Nordic Pure 20x20x4 Pleated Air

Nordic Pure 20x20x4 Pleated Air Filters MERV 8 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home

We recommend changing 1” and 2” filters every 30-90 days

Nordic Pure MERV 12 is equivalent to MPR 1500-1900

Nordic Pure 20x24x4 Pleated Air Filters MERV 14 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home

The actual width and length of the air filter should be within 1/8 of an inch-if not

20x21 1/2x1 Exact MERV 10 AC Furnace Filters Number Per Box:6 Nordic Pure 20x20x4 Pleated AirActual Size: 20 x 21 1 2 x 3 4 (20 x 21. 5 x 0. 75) Removes pollen, smoke particles, pet dander, bacteria, allergens, mold, virus carriers, and other contaminants. Ideal for normal air filtration and will help those with mild allergies. Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 10 is equivalent to MPR 1000 Made in the USA. Nordic Pure MERV 10 Pleated AC Furnace Air Filters provide