Grodan Gro-Block Improved GR10 Large with Hole, 4" x 4" x 4" (Case of 144) spl_ps and folded for storage

and folded for storage

MAKE SURE YOU DO NOT DISCARD

Each duct collar is constructed with galvanized steel that can endure extreme temperatures and finished with a corrosion-resistant zinc coating

leading to balanced growth for healthier plants and higher yields

Grodan Gro-Block Improved GR10 Large with Hole, 4" x 4" x 4" (Case of 144) spl_ps and folded for storageGrodan Gro Block Improved GR10 Large with Hole, 4" x 4" x 4" Case of 144 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