Grodan Improved GR10 (White Foil) 4" x 4" x 4" 1584 Blocks Loose on Sustainable Village Also features min-max

Also features min-max

BVV™ Activated Carbon or Charcoal powder is some of the highest purity and quality activated charcoal on the market

the product water may contain trace amounts of nitrates

(enough for 4+ crop turns)

Grodan Improved GR10 (White Foil) 4" x 4" x 4" 1584 Blocks Loose on Sustainable Village Also features min-maxDescription Product Details: Grodan Improved GR10 (White Foil) 4" x 4" x 4" (1584 blocks Loose on Pallet) Grodan Improved GR10 (White Foil) 4" x 4" x 4" (1584 blocks Loose on Pallet): Grodan Improved 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