Grodan Gro-Block Improved GR10, large 4Inches loose on pallet (1,584) discounted maximizing overall crop weight

maximizing overall crop weight

Unique drainage properties deters damping off

Use the Hydrologic reverse osmosis water filter Upgrade Kit to convert your Tall Boy to stealthRO 100 to customize your indoor hydroponic garden

Superior performance in premium air ducting

Flexible design

Grodan Gro-Block Improved GR10, large 4Inches loose on pallet (1,584) discounted maximizing overall crop weightNew Grodan Improved! Improved product at current pricing. New density + new hydrophilic technology = better water distribution and root development. The uniform distribution of water and nutrients throughout the block allows for more efficient use of the entire substrate volume Full saturation of the blocks with no dry spots and improved EC control with less water is achieved in the rootzone due to the uniform, optimized wool resulting in a