21x21x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Water Treatment Guard ‘n Spray’s ultra-concentrated formula

Guard ‘n Spray’s ultra-concentrated formula can be deployed via sprayers

• Optimally Balanced: Nutrients are in their most plant-friendly form and are balanced to maintain an optimal pH

6"-18" for bloom

- Dimming Settings at 100%

burn-free application

21x21x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack Water Treatment Guard ‘n Spray’s ultra-concentrated formulaNordic 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.