Grodan Gro-Block Improved GR7.5, 4" x 4" x 3" (Case of 192) Nutrients and Supplements Quantity : 8 layers x

Quantity : 8 layers x 300

making it ideal for all continuous monitoring applications

Humidome™ can be purchased separately

Please note: There is no growing media included with this system

Grodan Gro-Block Improved GR7.5, 4" x 4" x 3" (Case of 192) Nutrients and Supplements Quantity : 8 layers xGrodan Gro Block Improved GR7. 5 Medium with Hole, 4" x 4" x 3" Case of 192 New and improved stone wool substrate with advanced wetting technology from Grodan Introducing Grodan Gro Blocks Improved, a product specifically engineered to deliver real results for your crops, developed by plant scientists, researchers, and top growers. The uniform distribution of water and nutrients throughout the block allows for more efficient use of the entire