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Ships within 48 hours · Estimated delivery Sep 5 - Sep 10
our DE is free from all additives
Root Drench:
Certified with the ETL Mark and IP66 Rating
Previously they were rated at a higher temperature and humidity level based on hydroponic industry standard usage (86°F
The tested
Grodan Improved Jumbo, 6 x 6 x 4, with hole, case of 64 Shears our DE is free fromGrodan 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
