Grodan Gro-Block Improved Jumbo, 6" x 6" x 4" w/Hole (Pallet of 704 Loose Blocks) Pressure Gauge plus the well known frosted

plus the well known frosted look that growers love

Don't get caught with a cheap sump pump doing your dirty work

Apply at the first sign of insects or disease

Set in the award winning Resistance

For use with wet or dry product

Grodan Gro-Block Improved Jumbo, 6" x 6" x 4" w/Hole (Pallet of 704 Loose Blocks) Pressure Gauge plus the well known frostedGrodan 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 optimal fibre structure and physical properties for crop uniformity, more even