Grodan Gro Block Improved GR6.5 Small 4" w/Hole, 4" x 4" x 2.6" Strip - Case of 216 spl_dlw Choose from the Kill-a-Watt's four

Choose from the Kill-a-Watt's four settings to monitor your electrical usage by day

This new material is thicker and stronger for ultimate durability

The Vermi T Bio-Cartridge holds a plethora of biodiversity that isn't found in any other tea on the market

Automation is the key to consistent

Grodan Gro Block Improved GR6.5 Small 4" w/Hole, 4" x 4" x 2.6" Strip - Case of 216 spl_dlw Choose from the Kill-a-Watt's fourGrodan 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