Grodan Gro-Block Improved GR10 Large with Hole, 4" x 4" x 4" (Case of 144) Gateway Supply forming a clear

forming a clear

UPC Code: 816731014533

Package Dimensions:             160mm(L) x 86mm(W) x 86mm(H)

wall mount

Grodan Gro-Block Improved GR10 Large with Hole, 4" x 4" x 4" (Case of 144) Gateway Supply forming a clearGrodan 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