Gro-Slabs provide the final stage for growing a spectacularly large plant. Transplant your Gro-Block™ plant onto a slab just like professional growers. They come in clearly marked biodegradable UV resistant sleeves for comfortable handling and algae prevention. Uni-slab™ - All plant roots are protected and contained for the life of the plant. Due to its size, the Uni-Slab™ is perfect for one large plant. Uni-Slab ™has the benefits of a slab with the versatility of a block. All Gro-Slabs have vertical fibers except the 12 inch Gro-Slab, which has horizontal fibers.
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