RootBuilder II Kits
These containers are easily assembled around a bottom disk. A hole is at the tip of each outwardly projecting funnel on the side wall of these two containers. Roots are directed outward toward these holes, forcing them to branch and continuing the air root-pruning process.
The Root Builder II container system has many holes with downward facing protrusions all around the container. This design allows roots reaching towards the container wall to find the air holes immediately. The downward protrusions will make the directed root virtually impossible to escape root tip pruning. Another feature of the angled protrusions on the containers is that they not only force roots downward to the air hole for proper air pruning, they also create shade, keeping your entire plant's root system much cooler.
Item Number: 138729
Manufacturer's Part Number: 31201