The Root Riser is an aerobic root spacing product. This technology consists of a square plastic spacing element that attaches to the bottom of the industry standard Grodan® Hugo Gro-Block and elevates it slightly above the drainage tray. The Root Riser allows for optimized drainage and robust root growth throughout the plant’s maturity. The Root Riser can accommodate any configuration and size of the Grodan® Gro-Block product line or other popular growing substrates. The Root Riser is manufactured in California from recycled plastic and is easy to clean (dishwasher safe) which drastically reduces your growing bench turnaround time.