Grodan Gro-Block Improved GR32, Hugo, 6 x 6 x 6, Case of 64 Silicas Cation Exchange Enhancer for Vigorous

Cation Exchange Enhancer for Vigorous Vegetative Growth

A galvanized housing stands up to demanding grow-room and greenhouse runs

High Flow membrane: Every 6 months to 2 years dependent of use and input water quality

The double overwrap protects the master case

Our 5 Gallon

Grodan Gro-Block Improved GR32, Hugo, 6 x 6 x 6, Case of 64 Silicas Cation Exchange Enhancer for VigorousGrodan Improved Hugo (White Foil) 6 x 6 x 5. 8 (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