The Grodan Improved UNI-SLAB is a premium stone wool growing medium designed to support a single plant from transplant through harvest. Measuring 9.5” x 8” x 4”, this compact hydroponic slab provides excellent water retention, aeration, and root development for vigorous, healthy plant growth.
Featuring Grodan’s advanced wetting technology and vertically oriented fibers, UNI-SLABs distribute water and nutrients evenly throughout the growing medium while maintaining an optimal balance of moisture and oxygen in the root zone.
Unlike traditional long rockwool slabs designed for multiple plants, the UNI-SLAB provides an individual growing environment for each plant, making it ideal for hydroponic cannabis, tomatoes, peppers, and other large fruiting or flowering crops.
Key Features:
- Dimensions: 9.5” L x 8” W x 4” H
- Designed for growing one large plant
- Advanced wetting technology for uniform moisture distribution
- Excellent water retention and root zone aeration
- Vertically oriented fibers encourage healthy root development
- Inert growing medium provides precise control over nutrients
- Suitable for drip irrigation and automated hydroponic systems
- Protective plastic wrapping helps reduce algae growth
- Ideal for cannabis, tomatoes, peppers, and other hydroponic crops
How to Use:
- Place the UNI-SLAB on a level, well-draining growing surface.
- Fully saturate the stone wool with a properly balanced nutrient solution.
- Transplant a healthy, rooted cutting or rockwool block onto the slab.
- Create appropriate drainage openings in the bottom of the plastic wrapping.
- Irrigate as needed, monitoring moisture levels, nutrient concentration (EC), and pH throughout the growing cycle.
Grodan Improved UNI-SLABs provide professional-quality root zone management in a convenient, single-plant format.
Specifications:
- Brand: Grodan
- Product: Improved UNI-SLAB
- Material: Stone Wool (Rockwool)
- Dimensions: 9.5” x 8” x 4”
- Application: Hydroponic Growing
- Quantity: 1 Slab
