Wide-Format Stonewool Slabs for High-Density Commercial Cultivation
The Grodan® GR-Slab Improved is the result of a research partnership between Grodan, Wageningen University & Research, and top commercial growers across North America. At 36"x12"x3", this wide-format slab is engineered for high-density planting configurations, delivering uniform water and nutrient distribution with Grodan’s most advanced steering capabilities.
Key Features
- 36" x 12" x 3" wide-format slab — ideal for high-density crop configurations
- White/Rockwool (WR) wrapped — case of 8 slabs
- Advanced Wetting Agent (AWA) for optimal fiber structure and uniform WC/EC distribution
- Improved hydrophilic technology for enhanced, uniform water distribution across the full slab
- Optimized drainage and aeration balance for superior root zone management
- Maintains structure, firmness, and rigidity throughout the growing cycle
- Reusable and recyclable — part of Grodan’s sustainable growing program
What’s Included
Case of 8 slabs, white/rockwool wrapped. Intended for commercial greenhouse and indoor farm use.
Grodan GR-Slab Improved – 36"x12"x3" WR | Case of 8
Grodan GR-Slab Improved – 36"x12"x3" WR | Case of 8
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solutions tailored for the unique needs of hydroponic and organic farming practices.
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