Grodan Improved Jumbo, 6 x 6 x 4, with hole, case of 64 Grotek HydroMaster HM-500 pH/EC/TDS/°F Tester (113831)

HydroMaster HM-500 pH/EC/TDS/°F Tester (113831)

Amino Treatment allows your plants to operate at their maximum ability

Active Aqua Low Rise Flood Tables are ideally suited to top feeding and are also perfect for catching runoff from your hydroponic setup

2 each of: pH 7

and crab meal

Grodan Improved Jumbo, 6 x 6 x 4, with hole, case of 64 Grotek HydroMaster HM-500 pH/EC/TDS/°F Tester (113831)Grodan Improved Jumbo (White Foil) 6 x 6 x 4 (Case of 64) Grodan Improved Grodan 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 our Advanced Wetting Agent. These leading edge blocks have the