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DERIVED FROM: Calcium Nitrate
making it suitable for use in the production of high-quality extracts
Used alone or with existing soil to rejuvenate it
which means less waste and better results
18x24x 1/2 Half Inch Ring Panel MERV 13 Furnace Air Filters 6 Pack trays DERIVED FROM: Calcium NitrateNordic Pure Half Inch Ring Panel AC Furnace Air Filters consist of an internal frame bonded between flat layers of two different types of electrostatically charged HVAC furnace filter media. The first layer is a high capacity, polyester filter material which acts as a pre filter, capturing large airborne particles. The second, more efficient, layer is a MERV rated smooth poly blend filter material. The electrostatic charge works as a magnet to draw in
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