Products Description
The Stone Rockwool Grow Cubes RC75S offers flexible application—serving as a rockwool planting container at the intermediary growth stage, adapting to diverse cultivation workflows.
Crafted as a high-quality stone wool substrate, it is specifically optimized for hydroponic systems and indoor growing environments. Its stable structure and balanced air-water ratio provide consistent support for root development, ensuring reliable growth performance for a wide range of crops, from vegetables and flowers to professional cultivation varieties.
| Model | Size(mm) | Size(inch) | Pre-hole size(mm) | Quantity per carton(pieces) |
| RC75S | 75x75x75 | 3"x3"x3" | 25x35,round | 320 |
Parameter
Features: Light-blocking wrapping film
pH<7.5
Sink time<10s
Water absorption rate≧900%
Organic matter content <1.5%
Toxic & Harmful Heavy Metals Content: Not detectable
Application
Rockwool plug TP25/TP36/TP40/TP50 can fit snugly into the pre-formed hole on the top of the growing cube.
Used as an intermediary container for cannabis planting. It can be also used directly for medical hemp cloning.
Product Advantage
1.Perfect transplant finishing, root-safe;
2.Uniform water content & conductivity across cubes;
3.No seedling slowing post-transplant, shorter seedling periods;
4.Rapid root system development;
5.Compatible with most cultivation bags;
6.Grooves aid drainage & enable root air pruning.
