Grodan Improved GR40 Uniblock, 8 x 8 x 4, case of 36 Water Filters + ROs Systems Voltage: 6-24 VDC

Voltage: 6-24 VDC

Humidity<90%

Important Notes

The 6x12 tray holds up to 72 cells

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Grodan Improved GR40 Uniblock, 8 x 8 x 4, case of 36 Water Filters + ROs Systems Voltage: 6-24 VDCGrodan 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