Grodan Gro Block Improved Mini Block 2" Strip -Shrink Wrapped (Case of 60 Sleeves) HID After which time

After which time

The fans are very tough and will easily handle even the harshest grow room environments

up to 16″ (38 cm) across

If used correctly and with experience

Grodan Gro Block Improved Mini Block 2" Strip -Shrink Wrapped (Case of 60 Sleeves) HID After which timeGrodan 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 physical properties for crop uniformity, more