24x28x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack grow-system/-trays/-reservoirs Calibration: Digital calibration by push

Calibration: Digital calibration by push button

humic acid and pure Yucca extract

7" vented NanoDome

suitable for grow tents

24x28x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack grow-system/-trays/-reservoirs Calibration: Digital calibration by pushNordic 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.