21 1/2x26x1 Exact MERV 12 AC Furnace Filters 17x21x1 Nordic Pure 20x30x1 MERV 12

Nordic Pure 20x30x1 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

NEED MORE HELP: Not sure which custom furnace air filters are right for you

Replaces Honeywell 20x25x4 and filters with an MPR rating with an actual depth of 4 3/8 and ideal for high efficiency air filtration and those with moderate allergies

Nordic Pure 18x18x2 MERV 14 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

21 1/2x26x1 Exact MERV 12 AC Furnace Filters 17x21x1 Nordic Pure 20x30x1 MERV 12Actual Size: 21 1 2 x 26 x 3 4 (21. 5 x 26 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