Grodan Gro Block Improved GR6.5 Small 4" w/Hole, 4" x 4" x 2.6" Strip - Wrapped (Case of 36 Sleeves) Under Canopy 277v and bare wire configurations

277v and bare wire configurations

SST 28% Silica has a low molecular weight for enhanced uptake and is manufactured to be stable at pH ranges as low as 3

This probe is recommended for use with the HI981420 GroLine Hydroponic Nutrients Monitor for pH

• Multi-purpose air hose delivers air from the pump to the bottom of the bucket

Grodan Gro Block Improved GR6.5 Small 4" w/Hole, 4" x 4" x 2.6" Strip - Wrapped (Case of 36 Sleeves) Under Canopy 277v and bare wire configurationsGrodan 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