depot pull
Pay in 4 interest-free payments of $29.34 Learn more
Ships within 48 hours · Estimated delivery Sep 10 - Sep 15
5 in platform
2 (+1 Extra)
dries media surfaces
It dissolves easily in water
We recommend a Thermometer & Hygrometer
Grodan Gro-Block Improved GR22, Jumbo, 6 x 6 x 4, Case of 64 Deep Roots S2E8 Source 5 in platformGrodan Improved Jumbo (White Foil) 6 x 6 x 4 (Case of 64) Keep it Real Real Science 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. Real Improvement These leading