13x20x1 Exact MERV 13 Plus Carbon AC Furnace Filters 12 Pack Grow Light Ballasts (24) Neoprene Inserts (4 different

(24) Neoprene Inserts (4 different colors)

HEAVY DUTY CONSTRUCTION

This offers the grower a lighter weight option than heavy bags of wet soil

creating the optimal growing conditions

you simply screw it into your CFL reflector

13x20x1 Exact MERV 13 Plus Carbon AC Furnace Filters 12 Pack Grow Light Ballasts (24) Neoprene Inserts (4 differentNordic 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.