NORTH SPORE Mastr Mix Sterile Soyhull & Hardwood Substrate, 5lb Add on Kits | Accessories the valve is closed and

the valve is closed and not allowing air to pass through

the green button will flash three times quickly

our reflective white tubing is completely opaque to prevent algae growth

Rich in Plant-Supporting Amino Acids

NORTH SPORE Mastr Mix Sterile Soyhull & Hardwood Substrate, 5lb Add on Kits | Accessories the valve is closed andNORTH SPORE Mastr Mix Sterile Soyhull & Hardwood Bulk Substrate The Premium 5lb sterilized Mastr Mix contains a blend of hardwood sawdust, non GMO soyhulls, and select substrate amendments. This proprietary blend is formulated for higher yields and has a pleasant, leafy, deep veggie aroma (thanks to the premium soyhulls used in our recipe). After more than a year of development, the result is a product with a better nutritional profile for a faster