Grodan Improved Gro-Block Big Mama, 8 x 8 x 8, no hole, case of 18 commercial-greenhouse-fixtures They do not exist in

They do not exist in the general lighting industry

75" Recommended Mounting Height 15" - 24" above canopy Certifications UL 8800

Coveralls protect against particulates

It is best to clean surfaces with this product before protecting it with a disinfectant

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Grodan Improved Gro-Block Big Mama, 8 x 8 x 8, no hole, case of 18 commercial-greenhouse-fixtures They do not exist inGrodan 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