For plants growing outdoors during mid-day sun Gro-Slabs provide a good water buffer.
The 12” Gro-Slab is considered a wet slab due to its horizontal fibers.
It holds more water than other slabs and can support more plants than any stone wool slab.
The rest of the Gro-Slabs are all comprised of vertical fibers, which allow for faster drainage and a drier slab.
- Size of Inches : 6” x 3” x 36”
- Slabs/Pack : 12
12x Grodan GRO-SLAB 15 / 75 6''X36''X3''
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