Grodan Gro-Block Improved GR7.5, 4" x 4" x 3" (Case of 192) ventilation Package Contents: Each purchase you

Package Contents: Each purchase you make includes a case with a quantity of 24 AquaVita Air Stones

05% Chelated Manganese (Mn)

spore cysts

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Grodan Gro-Block Improved GR7.5, 4" x 4" x 3" (Case of 192) ventilation Package Contents: Each purchase youGrodan 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