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micro-sized
Product Details
The species of worm is critical for a high potency casting and the best by far is derived from African worms
stunted growth
Housing: Waterproof (submersible
ORGANIC AIR HEPA FILTER 10IN ROYAL GOLD micro-sizedThe tightly woven synthetic HEPA fibers in this filter will help prevent mold, bacteria, pollen, insects and plant pests from entering your grow room or greenhouse. The HEPA fibers block out most airborne particles down to . 3 microns in diameter. That is 300 times smaller than the diameter of a human hair. This is a serious insurance filter, without it you are leaving your grow room susceptible to the elements.