14x27x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack light Increased intensity in red

Increased intensity in red

± 2% Full scale (for EC and TDS)

altering 315W CMH lamps output also shortens their lifespan

Some cultivars and growing conditions may require higher doses of Calcium

High red light ratio for healthy plant growth

14x27x1 Exact MERV 13 Plus Carbon AC Furnace Filters 6 Pack light Increased intensity in redNordic 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.