12x22x1 Exact MERV 12 Plus Carbon AC Furnace Filters 12 Pack Garden Hygiene and Safety it provides a higher level

it provides a higher level of drainage and air-filled pore space than 25% perlite

While calcium and magnesium ions are easy for a plant to uptake

Dip N' Grow features a liquid concentrate easily diluted with water to the necessary strength

Grow confidently with PureCrop1

the effective life of your filter depends on the environment in which you live

12x22x1 Exact MERV 12 Plus Carbon AC Furnace Filters 12 Pack Garden Hygiene and Safety it provides a higher levelNordic 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.