Grodan Gro-Block Improved Big Mama, 8" x 8" x 8 " (Case of 18) Environmental Controllers coated to resist corrosion

coated to resist corrosion

blood-borne pathogens

Bulletproof Si 5% comes enriched with natural constituents like amino acids and Ascophyllum nodosum

leaf-hoppers

with a non-stick interior that cleans quickly and easily

Grodan Gro-Block Improved Big Mama, 8" x 8" x 8 " (Case of 18) Environmental Controllers coated to resist corrosionGrodan Gro Block Improved Big Mama, 8" x 8" x 8 " (Case of 18) 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 substrate volume.