Uniform Moisture Distribution
Horizontal fibers promote excellent lateral water movement, supporting water and EC management across the slab.
Grofine RSP-100 rock wool growing slabs are designed for high-yielding, long-cycle tomato crops. The 100mm horizontal fiber structure supports water distribution and root development.

Horizontal fibers promote excellent lateral water movement, supporting water and EC management across the slab.
The 100mm thickness creates a safe, stable water buffer to manage high-transpiration periods.
The layered horizontal structure encourages tomato roots to spread widely, providing room for root development.
Robust structural integrity supports structural stability for heavy tomato canopies through extended seasons.
Brands: Multiple options available.




| Model | Available Lengths (in/mm) | Available Widths (in/mm) | Fixed Height (in/mm) | Holes Per Slab |
|---|---|---|---|---|
| A | 36in/900mm | 6/8 in(150/ 200mm) | 4 in(100mm) | 0‑4 holes per slab |
| B | 40 in/1000mm | 6/8 in(150/ 200mm) | 4 in(100mm) | 0‑4 holes per slab |
| C | 43.3in/1100mm | 6/8 in(150/ 200mm) | 4 in(100mm) | 0‑4 holes per slab |
| D | 47.2in/1200mm | 6/8 in(150/ 200mm) | 4 in(100mm) | 0‑4 holes per slab |
| custom | custom | custom | custom | custom |
Other sizes, block opening dimensions and layouts are available upon request. Final standard SKU data will be confirmed by Grofine.
Ideal for commercial high-wire greenhouse facilities focused on intensive, long-cycle tomato production.
Suited for precision drip irrigation, offering a stable and forgiving moisture buffer for standard watering strategies.
Engineered to establish rapid capillary connection with standard propagation blocks for a unified root-zone.
Tell us your crop type, irrigation schedule, and facility requirements.
Request technical data, evaluation samples, or custom configurations from our agronomy team.