Grodan Pro Delta 6.5 Block, 4" x 4" x 2.5", case of 216, Commercial coco This impeller and guide vane

This impeller and guide vane combination provides a smooth laminar air flow which in turn minimizes turbulence and noise and generate an excellent air flow to static pressure performance ratio

This distinction means each unit is covered by a 5 year full manufacturer’s warranty

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

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Replacement Screen 150 Micron

Grodan Pro Delta 6.5 Block, 4" x 4" x 2.5", case of 216, Commercial coco This impeller and guide vaneGrodan 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