17x21x1 Exact MERV 10 Plus Carbon AC Furnace Filters 12 Pack Trimmers 500 square feet

500 square feet

Nordic Pure 12x24x4 MERV 7 Plus Carbon air filters are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that will attract and capture most airborne particulates in your home

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In grow tents

Soil Test is an excellent choice for taking direct conductivity measurements in soil

17x21x1 Exact MERV 10 Plus Carbon AC Furnace Filters 12 Pack Trimmers 500 square feetNordic 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.