13x20x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Chemicals These greenhouses feature sturdy steel

These greenhouses feature sturdy steel frames

Waterproof—it floats

Make weekly releases for 3-4 weeks

has a high capillary action

Use caution when applying to roses and peppers

13x20x1 Exact MERV 8 Plus Carbon AC Furnace Filters 6 Pack Chemicals These greenhouses feature sturdy steelNordic 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.