Grodan Improved Gro-Block Media Size:8 in. x 8 in. x 4 in. - Uni In such cases Chlorine generated

In such cases Chlorine generated from the degradation of PVC and the residual chlorine inside PVC may attack and destroy the Hindered Amine Light Stabilizer in the greenhouse polymer film

No more withering leaves and high energy bills

When to use: Early Spring is the best time to repot

Total flow rate for this kit: 32 GPH (

Grodan Improved Gro-Block Media Size:8 in. x 8 in. x 4 in. - Uni In such cases Chlorine generatedGrodan Stonewool (rockwool) is made from molten rock spun into cotton candy like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen