13x21x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack pest-and-disease-control extremely good for plants at

extremely good for plants at all stages from veg to bloom

is 5” in diameter and 18 1/2″ in length

PhysioSpec Indoor: 95 μmol/s

allowing for versatile placement in growing spaces with low ceilings

13x21x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack pest-and-disease-control extremely good for plants atNordic 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.