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Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes
Other ingredients include oyster flour
Proudly made in the USA
all in the same system
Exceptionally consistent delivery of the CMh lamp's superior color spectrum and PAR output
Hydrologic Big Boy Carbon Filter commercial-greenhouse-fixtures Grodan Stonewool (rockwool) is madeKeep your water fresh, your equipment in tip top shape, and your grow room at its best by making the commitment to exchange your filters. This carbon filter works with the Big Boy water filtration system and slips in easily to replace the one that came with your unit or additional replacements along the way.
