17x17x1 Exact MERV 13 Plus Carbon AC Furnace Filters 12 Pack pumps-&-irrigation healthier air in every room

healthier air in every room of your house

Used during the last few weeks of flowering

When the original DiST (Dissolved Solids Tester) was first introduced

Continue on a regular schedule throughout the growing season

The 45mm round form factor is engineered to fit standard round containers

17x17x1 Exact MERV 13 Plus Carbon AC Furnace Filters 12 Pack pumps-&-irrigation healthier air in every roomNordic 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.