Grodan Improved Jumbo, 6 x 6 x 4, with hole, case of 64 hydro-logic or the original soft collars

or the original soft collars

High molded walls keep your work contained

Gel filled with double junction reference to improve lifespan

SUPERthrive®is a highly concentrated non-toxic vitamin solution invigorating all variety of greenery for home gardeners and professionals alike

The micelle measures between 1-4 nanometers and does all the work

Grodan Improved Jumbo, 6 x 6 x 4, with hole, case of 64 hydro-logic or the original soft collarsGrodan 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