20x21x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack veg-and-bloom Packed with high levels of

Packed with high levels of potassium and phosphorous

so facilities will have no problem meeting USP 797-800 Air Borne test requirements

Hydroponic Application Rate: 1-5 ml per gallon of water in reservoir

The smart auto modes trigger your fan to activate in response to climate changes

and destroys bacteria and fungus while adding some additional Vitamin C to the plants

20x21x1 Exact MERV 12 Plus Carbon AC Furnace Filters 6 Pack veg-and-bloom Packed with high levels ofNordic 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.