The Red Label Trickle Filter for the 2025 Happy Combination Drum Filter 20/25 is a purpose-built biological upgrade designed to dramatically increase nitrification capacity, oxygen saturation, and overall water stability in professional koi pond filtration systems.
Engineered specifically to integrate seamlessly with the Red Label Happy Combi 20/25, this high-efficiency trickle tower transforms your drum filter into a complete mechanical-plus-advanced biological filtration solution capable of supporting heavily stocked koi ponds.
Why This Trickle Filter Outperforms Standard Biological Filters
Maximum Biological Conversion Power
The multi-stage open-air trickle design provides extremely high oxygen exposure and surface area. As a result, nitrifying bacteria colonise rapidly and convert ammonia and nitrite far more efficiently than submerged media systems.
Professional Oxygenation Performance
Because water cascades through oxygen-rich air space, dissolved oxygen levels increase significantly. This creates optimal conditions for koi health, immune strength, and digestion — especially important in high-feeding seasons.
Designed Specifically for the 2025 Happy Combi
Unlike generic trickle towers, this unit is engineered exclusively for the Red Label 20/25 Happy Combination Drum Filter, ensuring:
- Perfect hydraulic balance
- Correct flow distribution
- Seamless installation compatibility
- Maximum biological efficiency
Low Maintenance Operation
Since solids are already removed by the drum stage, the trickle filter remains clean and self-maintaining, requiring minimal intervention.
Key Benefits for Serious Koi Keepers
- Massive biological filtration boost
- Increased oxygen levels for faster koi growth
- Stable water parameters under heavy feeding
- Reduced risk of ammonia and nitrite spikes
- Professional upgrade for drum filter systems
- Ideal for high-stock UK koi ponds
Technical Specifications
| Feature | Specification |
|---|---|
| Compatibility | Red Label 2025 Happy Combi 20/25 |
| Dimensions | 995 × 850 × 785 mm |
| Total Installed Height | 1480 mm |
| Maximum Flow Rate | 20,000 LPH |
| Filter Panel Mesh | 120 micron |
| Inlet Connection | 1 × 63 mm |
| Outlet | Bottom grill |
| Construction | Heavy-duty polypropylene |
Why This Upgrade Helps You Achieve Crystal Clear Water
Traditional submerged bio chambers rely on limited oxygen levels, which restrict bacterial performance. In contrast, a trickle tower provides constant oxygen exposure, allowing aerobic bacteria to operate at peak efficiency.
This means faster waste conversion, cleaner water, and a healthier environment for koi.
