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Grodan rockwool 12"W x 3"H x 36"L Growing Slab Case/8 Slabs
- 12"WX3"HX36"L rockwool slabs are recommended for larger, long term crops with extensive roots like peppers, tomatoes or cucumbers
- High porosity allows easy root penetration, good water movement & optimum drainage
- Typically, seedlings in blocks are placed onto slabs
- Easy pH control to meet the needs of each season
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