Panda Film 40'x100' Black & White Woven Blackout Light Deprivation cloning-&-seed-starting Grodan Improved GR10 (White Foil)

Panda Film 40'x100' Black & White Woven Blackout Light Deprivation cloning & seed starting Grodan Improved GR10 (White Foil) Grodan Improved GR10 (White Foil) 4" x 4" x 4" (1584 blocks Loose on Pallet): 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 hydroponics and mist systems that require maximum pressure of 10 bar Description Black on one side and White on the other Control the light cycle in your greenhouse and hoop house Extra Tough 9 Mill Thickness Made From Reinforced Polyethylene Patented woven reinforced design for extreme weather UV Coated Reinforced with Multi Layer Patented Technology Waterproof Works in most Climates Anti Drip Properties