Grodan Improved GR40 Uniblock, 8 x 8 x 4, case of 36 Aeroponic DLC + ETL Listed: Full

DLC + ETL Listed: Full certification stack for utility rebate eligibility and commercial code compliance

Canvas Density: 210D

4 ft x 100 ft roll: Enough to net several beds

Capable of handling 18 to 27 lbs

so fresh media is the simplest way to keep output up

Grodan Improved GR40 Uniblock, 8 x 8 x 4, case of 36 Aeroponic DLC + ETL Listed: FullGrodan Improved GR40 Uniblock, 8 x 8 x 4, case of 36 Growershouse. com is proud to introduce the Grodan Improved Uniblock GR40, the culmination of extensive research and partnerships with top institutions and growers. Created in collaboration with the Wageningen University and Research facility in The Netherlands, and with feedback from leading North American growers, this product represents the pinnacle of stone wool substrate technology. Key