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Removable top straining screen
Eliminates clogging and promotes long-term performance of the drip irrigation system
but also on the bags themselves
Ideal for most hydroponic crops
Grodan Gro Block Improved GR4 Small 3" w/Hole 3" x 3" x 2.6" Strip- Unwrapped (Case of 48 Sleeves) AP Removable top straining screenGrodan 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