17x21x1 Exact MERV 13 Plus Carbon AC Furnace Filters 12 Pack nutrients and supplements check and adjust the pH

check and adjust the pH to between 5

The 400W grow lights optimize the grow space and produce the highest $/sq

Flexible Installation – Options for suspended or freestanding installation

0% | Potassium (K₂O): 6

While Supplies Last

17x21x1 Exact MERV 13 Plus Carbon AC Furnace Filters 12 Pack nutrients and supplements check and adjust the pHNordic 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.