Grodan Improved GR40 Uniblock, 8 x 8 x 4, case of 36 Growgles boasting an Electrical Conductivity (EC)

boasting an Electrical Conductivity (EC) of less than 0

and cabling in one tidy box

100 µmol/s PPF through a double-ended HPS platform with a German aluminum reflector rated above 96% reflectivity

The Exhaust Duct Kit allows duct work to be attached to the intake on Quest 506 Dehumidifier

For large infestations

Grodan Improved GR40 Uniblock, 8 x 8 x 4, case of 36 Growgles boasting an Electrical Conductivity (EC)Grodan 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