GRODAN GRO-BLOCKS Delta

  • Stonewool is recognized the world over as the ideal hydroponics growing substrate.
  • Seeds or cuttings are started in these Grodan Gro-Blocks and, once rooted, the blocks are transferred to a larger stonewool slab.
  • Gro-Blocks can be planted directly into containers for soil gardening as well.
  • Each block comes with pre-formed holes.
  • Grodan stonewool is known for its quality, consistency and performance.
  • Comes in multiple sizes; a strip of eight 3" x 3" x 2.5", a strip of eight 3" x 3" x 4", a strip of six 4" x 4" x 2.5", a strip of six 4" x 4" x 3" or a strip of six 4" x 4" x 4".

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