Optimized Water-Oxygen Dynamics
The specialized fiber structure supports a balance of moisture retention and aeration, helping growers manage over-wetting while promoting vigorous root respiration from day one.
Professional Propagation Media
Rock Wool Propagation Plug T25
Model: PP-T25For precision commercial propagation, PP-T25 delivers consistent foundation for seeds and vegetative cuttings. Advanced fiber technology provides optimized water-to-air ratio supporting early root initiation. Standard T-shape fits professional propagation trays for mechanical handling and transplantation into larger stone wool blocks.
Key Product Benefits
Exceptional Batch Consistency
Manufactured for strict uniformity in physical properties and EC/pH neutrality, allowing growers to apply precise crop steering strategies across commercial propagation batches.
Strong Early Root Establishment
The low-resistance, vertically oriented fiber matrix encourages rapid taproot penetration and robust lateral root development.
Streamlined Commercial Handling
Designed with excellent structural integrity, these plugs maintain their shape during mechanical seeding, automated handling, and transplanting, supporting efficient nursery workflows.
Product Specifications
- Product
- Rock Wool Propagation Plug T25
- Pre-cut Type
- T-shape
- Pre-cut hole
- 1 pre‑drilled hole per plug
- Application
- Commercial greenhouse propagation: tomato, pepper, cucumber and flower seedlings
- Compatibility
- 1.For seedling and herb cuttings propagation
2.Transplantable to larger stonewool grow cubes
3.Supports physical mechanical seeding - Safety
- Microbe-free, pathogen-free, non-toxic
- Customization
- Custom plug sizes, hole diameters, layouts and heights available
Standard Configurations
| Model | Single size (L×W×H) | Hole Size (Ø × H) | Sheet size (L×W×H) | Quantity per full sheet |
|---|---|---|---|---|
| PP-T25 | 0.8x1x1.5 in(20x25x 40 mm) | φ0.2in(5mm)，H0.59in(15mm) | 20x10x1.5 in (508x254 x40mm) | 200 separable plugs |
| Custom | Customized | Customized | Customized | According to Tray Specification |
Need a different size or tray configuration? Custom plug dimensions and planting-hole configurations are available for different propagation systems.
Usage & System Compatibility
Propagation Systems
Compatible with standard high-density EPS or plastic propagation trays (e.g., 200-cell or 240-cell). Ideal for automated mechanical seeding lines and large-scale commercial nurseries.
Irrigation Management
Adapts to diverse nursery irrigation methods, including overhead boom watering and ebb-and-flow systems. The clean, inorganic starting material supports monitored root-zone EC and pH management with appropriate nursery hygiene.
Transplant Integration
The standardized T25 profile is purposefully designed for straightforward transfer into the pre-cut holes of larger stone wool grow blocks, or for direct placement into NFT/DWC hydroponic systems.
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Rock Wool Growing Block 100S
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Rock Wool Growing Block 75M
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