Grodan Slab, 36" x 8" x 3" Grodan 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... $7.91 Add to Cart Compare
Grodan stonewool delta starter Mini blocks 1.5" x 1.5" x 1.5" 45 pk Type a description for this product here... $6.78 Add to Cart Compare
Green Diamond 6x6x6 (24ct /case) Green Diamond Stonewool Grow Blocks (6″x6″x6″) are the second stepping stone to a growing plant. This transplanting medium is a model environment for the vegetation state of a plant. Balanced water retention and air ratio lead to the... $48.00 Add to Cart Compare
