Grodan Improved Gro-Block Big Mama, 8 x 8 x 8, no hole, case of 18 X Nutrients bloom is the best of both

is the best of both worlds

When used in conjunction with our air condition and furnace air filters you will reduce the dust

Leaf Green is recommended for plants that have difficulties during their initial development

Packed with high levels of potassium and phosphorous

This system reduces humidity levels to prevent mold growth while intaking fresh air to push out odors and other harmful pollutants like Radon from your home

Grodan Improved Gro-Block Big Mama, 8 x 8 x 8, no hole, case of 18 X Nutrients bloom is the best of bothGrodan 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