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Ships within 48 hours · Estimated delivery Aug 29 - Sep 3
Silicone backed nylon exterior
(without toxic chemicals)
PhysioSpec Greenhouse offers a world-class work and research environment with vivid colors and greater contrast to study the health of your crop
Most Efficient Pint-to-Amp Ratio in Its Class
• Plants are equipped for rapid transplant success and long-term health
Grodan Pro Delta 10 Block, 4" x 4" x 4", case of 144, Commercial hydro-components Silicone backed nylon exteriorGrodan Stonewool (rockwool) is made from molten rock spun into cotton candy like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen
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