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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
25 sq ft of tray space
Removes water down to 0
and increases your plant’s tolerance to droughts
It is mainly used in the blending of dry agricultural fertilizers
Each filter comes pre-lubricated in a sealed bag
Grodan Gro Block Improved GR10 Large 4" w/Hole 4" x 4" x 4" Strip - Wrapped (Sleeve of 6) Pure Zym 25 sq ft of trayGrodan 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