American Netting Lightweight Crop Cover (White 17g) Size:10 FT X 12 FT Grodan Stonewool (rockwool) is made

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes

Boron improves the structural integrity of cell walls

Lumen Output: 1760

The ten speed levels are shown with a circular LED display that dims after fan speed is set to leave your plant's light cycle undisturbed

The combination of the grow and bloom formulas utilizes the good nutrients that are found in water sources with higher concentrations of Calcium (40 ppm Ca or more)

American Netting Lightweight Crop Cover (White 17g) Size:10 FT X 12 FT Grodan Stonewool (rockwool) is madeCrop Cover (also referred to as floating row cover, frost blanket or over wintering) acts as a protective greenhouse and guards against light frosts, insects and drying winds. FEATURES Spun bonded polypropylene Traps heat Allows water, air, sunlight & soluble fertilizers to pass through Protects against insects & drying winds UV stabilized LIGHT WEIGHT 0. 5 oz sy (17 gm) 85% Light Transmission Protects Down to 28F ( 2 Celsius) 1 Year Life Expectancy