Grodan Stone wool (rock wool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rock wool 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.
PLEASE NOTE: THIS ITEM IS NOW 12 PER CASE.
Grodan-Expert Slab are available in the following package sizes:
36″ x 6″ x 3″ – case of 12
36″ x 6″ x 4″
36″ x 8″ x 3″
40″ x 6″ x 3″
Benefits of Rock Wool
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