Quick view Details Grodan | sku: GR4x4S Grodan Delta 10 Block 4" x 4" x 4" with Hole MSRP: $10.12 Now: $8.95 Add to Cart Compare Quick view Grodan | sku: GR4x4S Grodan Delta 10 Block 4" x 4" x 4" with Hole 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... MSRP: $10.12 Now: $8.95 Add to Cart Compare Compare Selected
Quick view Grodan | sku: GR4x4S Grodan Delta 10 Block 4" x 4" x 4" with Hole 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... MSRP: $10.12 Now: $8.95 Add to Cart Compare Compare Selected