Grodan Gro-Block Improved GR5.6 Large with Hole, 3" x 3" x 4" (Case of 256) GROWGANICA These ingredients are impregnated onto

These ingredients are impregnated onto a long-lasting

High-quality Carbon Filters: Replaceable high-flow carbon filters ensure the efficient elimination of odors and impurities

Deluxe Ratchet Shear with finger guard

is the first top-feeding wicking system of its kind

It is safe enough to spray at harvest time

Grodan Gro-Block Improved GR5.6 Large with Hole, 3" x 3" x 4" (Case of 256) GROWGANICA These ingredients are impregnated ontoGrodan Gro Block Improved GR5. 6 Large with Hole, 3" x 3" x 4" (Case of 256) 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