16x28x1 Exact MERV 12 AC Furnace Filters 4 Inch Nordic Pure 14x20x1 MERV 10

Nordic Pure 14x20x1 MERV 10 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

a 20x30x1 air filter is actually 19 ½ x 29 ½ x ¾

Nordic Pure 16x24x2 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

Depending on the size

Nordic Pure 14x24x1 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

16x28x1 Exact MERV 12 AC Furnace Filters 4 Inch Nordic Pure 14x20x1 MERV 10Actual Size: 16 x 28 x 3 4 (16 x 28 x 0. 75) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, virus carriers, mold spores and other contaminants. Ideal for high efficiency air filtration and will help those with moderate allergies and asthma. Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 12 is equivalent to MPR 1500 1900 Made in the USA. Nordic Pure MERV 12