Nordic Pure 18x20x1 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
please see our 20x25x5 (4 3/8 actual depth)
This dust reduction air filter is ideal in keeping your AC and furnace equipment working efficiently and helps reduce odors
Nordic Pure 20x20x5 Honeywell Replacement MERV 13 rated air filters are what is considered the traditional 5” filter at an actual 4 3/8”
we recommend that you replace your air conditioning filter every 30-90 days
21x23 1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 16x25x2 Nordic Pure 18x20x1 MERV 12Actual Size: 21 x 23 1 4 x 3 4 (21 x 23. 25 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