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*Shipping & Return Policy*
  • Grodan Delta 10 Block, 4" x 4" x 4", with holes 6 per Strip - HydroPros.com
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    Grodan Delta 10 Block, 4" x 4" x 4", with holes 6 per Strip

    Grodan
    $8.20

    Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where oth...

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    $8.20
    Sold out