Grodan Gro-Block Improved GR22, Jumbo, 6 x 6 x 4, Case of 64 Nutrient Kits & Accessories Growers stand it on the

Growers stand it on the floor or mount it on a wall to break up canopy hotspots and even out temperature

Proven Performance: Trusted by the world's top cultivators

customizable air circulation that adapts to your plants' needs

Running an ExHale XL Bag in a Grow Room

Grodan Gro-Block Improved GR22, Jumbo, 6 x 6 x 4, Case of 64 Nutrient Kits & Accessories Growers stand it on theGrodan Improved Jumbo (White Foil) 6 x 6 x 4 (Case of 64) Keep it Real Real Science Grodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation strategies for specialty crops. The result of months of scientific research and trials is Grodan Gro Blocks Improved with our Advanced Wetting Agent. Real Improvement These leading