13x21x1 Exact MERV 13 Plus Carbon AC Furnace Filters 12 Pack vacuum Greensand is gentle on plants

Greensand is gentle on plants and won’t cause root burn

Safe on Edible Crops – Leaves no harmful residues on fruits

This ballast is built to last with an exclusive design that allows electrical contact to happen only when a seal is achieved

This increase in availability of electrons promotes efficient absorption and uptake of nutrients

Includes: 2-stage oversized housings with pleated

13x21x1 Exact MERV 13 Plus Carbon AC Furnace Filters 12 Pack vacuum Greensand is gentle on plantsNordic 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.