Grodan Improved GR40 Uniblock 8" x 8" x 4" (Case of 36) Humidifier 1 bottom bin with mirror

1 bottom bin with mirror finish collection tray

B'Cuzz Bloom helps stop stresses such as interrupted light cycles

Also includes a bonus built-in all-purpose knife sharpener

Use with Athena Pro Core for a complete and balanced recipe

Grodan Improved GR40 Uniblock 8" x 8" x 4" (Case of 36) Humidifier 1 bottom bin with mirrorGrodan Improved Uniblock GR40, 8" x 8" x 4" 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 leading edge blocks have the optimal fiber structure and