21x21x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack ventilation Add the packet to the

Add the packet to the buffering solution

Safety is key in the grow room

reliable readings of soil conductivity (EC) and temperature—no messy soil slurries

Nordic Pure 18x20x2 MERV 13 Plus Carbon air filters are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that attracts and capture most airborne particulates in your home

controlling pest populations without the need for chemical pesticides

21x21x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack ventilation Add the packet to 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.