12x15x1 MERV 7 Plus Carbon AC Furnace Filters 12 Pack nutrient-combo • The recommended pH range

• The recommended pH range is 5

Start swinging from the tree tops in excitement and organize your indoor grow tent set-up with this indestructible gear boards

No waiting required — you can re-enter treated areas immediately after application

but it also allows the carbon filter to last up to 33% longer

Will one application be enough

12x15x1 MERV 7 Plus Carbon AC Furnace Filters 12 Pack nutrient-combo • The recommended pH rangeNordic 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.