Gro-Slab, 36" x 12" x 3", Wettest
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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.

Grodan stonewool is known for its quality, consistency and performance.

  • Item #: CS390

Gro-Slab, 36" x 12" x 3", Wettest

Price: $16.00
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