13x21x1 Exact MERV 14 Plus Carbon AC Furnace Filters 12 Pack rockwool and this case of 25

and this case of 25 pouches covers up to 1

Premium vinyl tubing made of excellent quality

and is compact and lightweight

residue or taste

EC/TDS and temperature tester combines all the features users have requested and more

13x21x1 Exact MERV 14 Plus Carbon AC Furnace Filters 12 Pack rockwool and this case of 25Nordic 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.