Grodan Improved Gro-Block, Jumbo 6" x 6" x 4", Case of 64 Water Heaters Chillers ozone production - 1800 mg/hr

ozone production - 1800 mg/hr

The TrolMaster Carbon-X system provides critical monitoring of CO2 levels for up to 13 separate zones / rooms

Better yet

the fine cell structure and drainage properties provide uniform moisture and hydroponic nutrients throughout the media – whether you use overhead irrigation or sub-irrigation

No Need for Cal-Mag Supplements: Rich in calcium and magnesium in the optimal 4:1 ratio

Grodan Improved Gro-Block, Jumbo 6" x 6" x 4", Case of 64 Water Heaters Chillers ozone production - 1800 mg/hrGrodan Improved Jumbo (White Foil) 6 x 6 x 4 (Case of 64) Grodan Improved Grodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation strategies for specialty crops. The result of months of scientific research and trials is Grodan Gro Blocks Improved with our Advanced Wetting Agent. These leading edge blocks have the