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Granulated rockwool can be used alone or as an amendment to organic based mixes
and a decontaminant which dissipates rapidly
Grow environments require high-capacity
Every garden needs a superhero
Eight-speed options are available with a power switch
14x20x 1/2 Half Inch Ring Panel MERV 7 Furnace Air Filters 12 Pack new releases Granulated rockwool can be usedNordic 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
