Description
XFLO XFL5-120H-2 UV Sterilizer | 120 W High-Output Ultraviolet Reactor • 5″ Diameter Chamber • Premium Aquarium & Pond-Grade
The XFLO XFL5-120H-2 is a high-capacity, high-output UV-C steriliser engineered for larger aquariums, ponds and water features. With a robust 120 W lamp housed in a 5″ diameter reactor, it’s designed for demanding systems where maximum flow and maximum microbial control are required.
By combining XFLO’s hallmark “L-shaped” flow path, unionised plumbing and easy-access maintenance features, this model delivers professional filtration performance with user-friendly servicing.
Key Features
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High-Output 120 W UV-C Lamp – Ideal for larger systems requiring strong sterilisation and high flow.
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Optimised “L-Shaped” Flow Path – Provides excellent hydraulic mixing of water, reducing dead zones and maximising UV exposure.
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Unionised Water Ports (2″ on 5″ Models) – Simplifies plumbing installation and service access.
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Single-Ended Lamp & Quartz Sleeve Access – Lamp and sleeve can be replaced or cleaned without disassembling the entire front housing.
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No-Twist Tool-Free Cable Fittings – Lamp cable removal is tool-free, preventing cable damage during maintenance.
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Durable Lamps & Materials – Uses high-quality hard-quartz, non-ozone-emitting lamps and shop-friendly design for long life and clear water performance.
Technical Specifications
| Specification | Value |
|---|---|
| Model | XFL5-120H-2 |
| Lamp Power | 120 W (single lamp) |
| Reactor Diameter | 5″ (~127 mm) |
| Inlet/Outlet Port Size | 2″ union fittings |
| Flow Rate (≈30 mJ/cm² dose) | ~3,840 GPH (~14,500 L/hr) |
| Flow Rate (≈180 mJ/cm² dose) | ~600 GPH (~2,270 L/hr) |
| Recommended Aquarium Size* | ~600 gal (~2,250 L) |
| Recommended Pond Size** | ~14,000 gal (~53,000 L) |
* Based on ~180 mJ/cm² dosage and one turnover per hour.
** Based on ~30 mJ/cm² dosage and one turnover every ~3-4 hours.
Applications
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Large aquariums needing robust UV sterilisation for clarity, algae reduction or pathogen control.
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High-flow pond and water feature systems where chemical-free sterilisation and maximal throughput are required.
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Aquaculture or commercial filtration setups with significant volume and turnover demands.
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Situations where ease of maintenance and high-quality components are essential.
Benefits
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Exceptional water clarity & sanitation – The high wattage and optimised flow design maximise UV exposure, reducing algae, bacteria, parasites and other waterborne microorganisms.
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Large-scale capacity – With a 120 W lamp and high flow ratings, this model supports very large volume systems, larger than standard hobby models.
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Service-friendly design – Union fittings, single-ended access and tool-free cable fittings mean faster, easier maintenance.
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Quality-built & reliable – Constructed with premium materials and design expertise, offering long-term value and performance.
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Chemical-free sterilisation – Provides safe, residue-free disinfection—great for sensitive aquatic environments, plants and livestock.
Installation & Maintenance Tips
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Install the system after mechanical and biological filtration to ensure water entering the UV chamber is as clear as possible—this maximises UV effectiveness.
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Ensure flow through the unit stays within the recommended range—excess flow reduces exposure time and can compromise sterilisation performance.
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Replace the UV lamp annually (or in line with recommended hours) even if visible brightness appears unaffected—UV output declines before visible light drop-off.
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Clean the quartz sleeve regularly to remove scaling, biofilm or mineral deposits that can block UV transmission.
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Confirm all unions and seals are correctly installed and tight, then test for leak-free operation before leaving system unattended.
The XFLO XFL5-120H-2 UV Sterilizer is a premium-grade solution for large, demanding water systems where maximum UV-C performance, high flow capacity and easy servicing are required. If you’re specifying a system for larger aquariums, ponds or commercial installations and want chemical-free sterilisation backed by professional design, this model offers major capability and long-term value.