21x21x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack spl_hrg increments from 1/4 - 1

increments from 1/4 - 1 oz

Nordic Pure 12x25x2 MERV 12 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

Successful growers know the importance of abundant phosphorus during the budding and flowering stages

While it is not a plant food or nutrient

and its spectrum is 45% more efficient for photosynthesis than HPS

21x21x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack spl_hrg increments from 1/4 - 1Nordic 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.