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| Grodan Stonewool Gro-Blocks 3"x3"x4" [SB327] | Stonewool is recognized the world over as an ideal hydroponics growing medium. Seeds or cuttings are started in these larger 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. This is a strip of eight 3"x3"x4" Gro-Blocks, each with pre-formed holes. Grodan stonewool is known for its quality, consistency and performance.
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Grow Media
Hydro Systems
