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Significant increases in yield have been attributed to the addition of silicon to the feed schedule

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11 3/8x11 3/8x1 Exact MERV 10 Plus Carbon AC Furnace Air Filters 12 Pack vacuum pump A breakthrough in carbon sourceNordic 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.