Mineral wool cubes 4x4x4 cm 15 pieces Grodan Delta

Grodan Delta Rockwool Cubes 4×4×4 cm (15 pcs) – Substrate for Hydroponics, Propagation and Seed Starting

Product Description

Grodan Delta rockwool cubes (4×4×4 cm) are high-quality growing media designed for hydroponic systems, seed starting, and cutting propagation. They provide ideal conditions for young plant development thanks to their excellent air-to-water ratio and sterile environment.

Applications

• Seed germination and sprouting
• Rooting cuttings and clones
• Hydroponic and soilless cultivation
• Drip irrigation systems, ebb and flow setups, and automated indoor growing
• Transplanting into larger Grodan blocks or slabs (blocking technique)

Product Advantages

• Uniform structure ensures consistent moisture and oxygen distribution
• Sterile material promotes healthy root development
• Easy to control EC and pH levels
• Compatible with professional irrigation and sensor systems
• UV-resistant foil prevents algae growth
• Reusable and recyclab