13x21x1 Exact MERV 14 Plus Carbon AC Furnace Filters 12 Pack Environmental Controllers Day and night settings keep

Day and night settings keep temperature within your set point

What it is: A highly active and balanced blend of microbes and humic substances that combines photosynthetic cultures and essential elements

| Airflow: 200 CFM | Noise: 30 Dba | Bearings: Dual Ball

These trays have been specifically engineered to allow for just the right amount of water to enter the growing medium

13x21x1 Exact MERV 14 Plus Carbon AC Furnace Filters 12 Pack Environmental Controllers Day and night settings keepNordic 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.