21 1/2x24x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Tents / Indoor Greenhouses This is one of the

This is one of the most powerful and potent All-in-One plant growth enhancers on the market today

0-1999 ppm

Commercial grows

9-pounds/0

Overall width - Side to side: -10"

21 1/2x24x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Tents / Indoor Greenhouses This is one of theNordic 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.