21 1/2x26x1 Exact MERV 13 Plus Carbon AC Furnace Filters 23 1/2x25x1 which are 1/1000 of a

which are 1/1000 of a millimeter (a human hair is about 70 microns wide)

Replaces Trion Air Bear Cub filters and others that require an actual 3" depth and ideal for normal air filtration

Nordic Pure 14x24x2 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

Nordic Pure Custom MERV 13 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering

MERV 12 Plus Carbon air filters are comparable to air filters with the MPR rating of 1500-1900

21 1/2x26x1 Exact MERV 13 Plus Carbon AC Furnace Filters 23 1/2x25x1 which are 1/1000 of aActual 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, smog, virus carriers, mold spores, help eliminate unwanted odors and other contaminants. Ideal for customers looking for superior filtration but needing an odor control element Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 13 is equivalent to MPR 2200 2400 Made in