17x17x1 Exact MERV 14 Plus Carbon AC Furnace Filters 12 Pack propagation trays Supports proper thermal control by

Supports proper thermal control by directing how the airflow moves throughout the rack and can be used in conjunction with a rack fan system

Electrical Port Quantity 10 (3"

These modes of action pose no risk of resistance development

Chloramine is really bad for plants and has no easy way to be remediated

and cool-running—this is one cool ballast

17x17x1 Exact MERV 14 Plus Carbon AC Furnace Filters 12 Pack propagation trays Supports proper thermal control byNordic 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.