17x17x1 Exact MERV 13 Plus Carbon AC Furnace Filters 12 Pack pumps-&-irrigation Used during the last few

Used during the last few weeks of flowering

Leafhoppers (Circulifer tenellus)

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 Used during the last fewNordic 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.