GRODAN GRO-SLAB, 36" x 12" x 3", Wettest

  • Grodan Stonewool is a proven hydroponics growing medium preferred by garden enthusiasts everywhere.
  • This classic Delta Slab is perfect for "blocking on" smaller stonewool plugs and blocks to accommodate the final stages of plant growth.
  • Packaged in a UV-resistant plastic poly sleeve to minimize algae formation, this is a single Delta Slab with horizontally packed fibers for better water retention.

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