17x21x1 Exact MERV 14 Plus Carbon AC Furnace Filters 12 Pack Aeromixer Synthetic Pro Edition Along with lowering pH levels

Along with lowering pH levels

* Lockable

Suitable for grow tents for full and flower cycles

it is important to regularly change your AC filter

17x21x1 Exact MERV 14 Plus Carbon AC Furnace Filters 12 Pack Aeromixer Synthetic Pro Edition Along with lowering pH levelsNordic 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.