Grodan Gro Block Improved GR4 Small 3" w/Hole 3" x 3" x 2.6" Strip- Unwrapped (Case of 48 Sleeves) Voodoo Juice These upgraded versions of the

These upgraded versions of the classic CenturionPro trim machines include the Quantanium tumblers

Adding healthy bacteria and fungi to your grow increases nutrient uptake

Soft Rock Phosphate

never soggy

leaving a lot of gains on the table

Grodan Gro Block Improved GR4 Small 3" w/Hole 3" x 3" x 2.6" Strip- Unwrapped (Case of 48 Sleeves) Voodoo Juice These upgraded versions of theGrodan 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