Grodan Gro Block Improved GR10 Large 4" w/Hole 4" x 4" x 4" Shrink wrapped/Strip of 6Product Details Grodan Improved Gro Block Improved GR10 Large 4" w Hole 4" x 4" x 4" Shrink wrapped Strip 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 Grodans Advanced Wetting Agent. These

Add ½ teaspoon per gallon of wine must to stimulate fermentation

Cha Ching® is a pH balanced blend of extra strength nutrients specifically formulated to increase essential oils and pump out heavy resins in fruit

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It reduces wort viscosity

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