Grodan Improved Gro-Block Big Mama, 8 x 8 x 8, no hole, case of 18 post harvest pH and nutrients are automatically

pH and nutrients are automatically adjusted to the desired range

without opening the bag

Nordic Pure 12x20x2 MERV 7 Plus Carbon air filters are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that attracts and capture most airborne particulates in your home

9 x Matrix | 9" x 10

HPS+ grow room glasses are the go-to optical tool for indoor and outdoor growing under high pressure sodium lights

Grodan Improved Gro-Block Big Mama, 8 x 8 x 8, no hole, case of 18 post harvest pH and nutrients are automaticallyGrodan Improved Gro BlocksLeverage the benefits of products developed alongside plant scientists, that are specifically engineered to deliver real results for your crops. Grodan Gro Blocks Improved with Advanced Wetting Technology Grodan's improved stone wool substrate. Keep it RealReal ScienceGrodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone