20x21x1 Exact MERV 8 Plus Carbon AC Furnace Filters 12 Pack hydro-systems Nordic Pure 18x24x4 MERV 12

Nordic Pure 18x24x4 MERV 12 Pleated Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

Reservoir 31

The gel-filled pH electrode is provided with a waterproof sleeve to protect the BNC connector

Pure Carbon Pleated air filters will aid in absorbing impurities and unfavorable odors

While other bags degrade after a single season

20x21x1 Exact MERV 8 Plus Carbon AC Furnace Filters 12 Pack hydro-systems Nordic Pure 18x24x4 MERV 12Nordic Pure pleated AC air filters are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home or office. Each time air passes through a Nordic Pure pleated furnace filter, lint, household dust, pollen, dust mites, pet dander, baking flour, mold spores and other contaminants are removed. Our filter media prevents the growth of bacteria or mold, resulting in a much healthier living space.