Cost-Effective Propagation
Provides the precise substrate volume needed for rooting rose cuttings and raising sweet peppers economically with an efficient use of substrate.
Professional Growing Media
Rock Wool Growing Block 75M
Model: RB-75MThe Grofine RB-75M Rock Wool Growing Block is a highly cost-effective hydroponic substrate suited for commercial rose propagation and early sweet pepper seedling production.
Key Product Benefits
Balanced Rootzone Dynamics
Engineered to maintain an ideal air-to-water ratio, accelerating healthy root initiation when irrigation is managed appropriately.
Vigorous Root Development
Creates a stable, breathable physical environment that encourages rapid lateral root branching for stronger, transplants.
Consistent Batch Format&
Uniform stonewool density supports repeatable water management across your entire greenhouse canopy, standardizing your nursery operations.
Product Specifications
- Product
- Rock Wool Growing Block 75M
- Pre-cut hole
- 1. Standard:1 pre‑drilled hole per cube
2. Custom hole size - Grooves
- standard：Included
- Film
- Wrapped in silver/white film
- Application Stage
- For commercial rose propagation and early sweet pepper seedling production
- Safety
- Microbe-free, pathogen-free, non-toxic
- Packaging
- Commercial / Bulk Packaging
Brands: Multiple options available.
Standard Configurations
| Block Size (L × W × H)in/mm | Hole Size | Hole Layout |
|---|---|---|
| 3x3x2.5in（75x75x65mm） | φ1 in (25.4 mm), H1.38 in (35.05 mm) | Single Hole |
| Custom | Custom | Custom |
Other sizes, hole diameters, layouts and groove designs are available upon request.
Usage & System Compatibility
Versatile Nursery Integration
Easily integrates into commercial propagation setups, adapting to standard nursery trays and automated facility handling systems.
Precision Fertigation Ready
Highly responsive to automated overhead misting and targeted drip irrigation, allowing precise moisture control during the fragile rooting phase.
Nursery Transplanting
Maintains cohesive structural integrity to protect delicate roots, allowing a seamless transition onto larger commercial rock wool slabs.
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