Grodan Gro-Block Improved GR10 Large with Hole, Unwrapped, 4" x 4" x 4" - PALLET OF 1584

Grodan Gro-Blocks Improved is a stone wool substrate designed for precise crop cultivation, promoting uniform growth and efficient water and nutrient use.

• The description claims that the product delivers real results for crops and allows for more uniform and high-quality growth.
• The description claims that the substrate improves re-wettability and allows for increased water concentration in the substrate.
• The description claims that the product uses less water and nutrients while achieving full saturation of the blocks with no dry spots.