Description
XFLO XFL5‑50H‑2 UV Sterilizer | 50 W High‑Output Ultraviolet Reactor • 5″ Diameter Chamber • Professional Aquarium & Pond‑Grade
The XFLO XFL5‑50H‑2 is a high‑performance, high‑output UV‑C steriliser designed for larger aquariums, ponds or water‑feature systems. With a 50‑watt UV‑C lamp housed in a robust 5″ diameter reactor, it’s engineered to deliver strong sterilisation across higher flow rates and larger volumes. It features XFLO’s signature “L‑shaped” internal flow path, unionised plumbing and maintenance‑friendly access—providing both professional performance and service convenience.
Key Features
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High‑Output 50 W UV‑C Lamp – Ideal for mid‑to‑large systems requiring strong microbial control.
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Optimised “L‑Shaped” Flow Path – Ensures excellent hydraulic mixing, reduces dead zones and maximises UV exposure.
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Unionised Water Ports (2″ on 5″ Models) – Makes installation and servicing much easier with standard union fittings.
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Single‑Ended Lamp & Quartz Sleeve Access – Allows lamp or sleeve replacement/cleaning without full unit disassembly.
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Tool‑Free No‑Twist Cable Fittings – Prevents cable twisting damage during maintenance.
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Durable Build & Premium Materials – Uses high‑quality hard‑quartz, non‑ozone‑emitting lamps for long‑life performance.
Technical Specifications
| Specification | Value |
|---|---|
| Model | XFL5‑50H‑2 |
| Lamp Power | 50 W (single lamp) |
| Reactor Diameter | 5″ (~127 mm) |
| Inlet/Outlet Port Size | 2″ union fittings |
| Flow Rate at 30 mJ/cm² dose* | Approx. 1,500 GPH (~5,600 L/hr) from brochure table Pure Aquatics+1 |
| Flow Rate at 180 mJ/cm² dose* | Approx. 240 GPH (~900 L/hr) from brochure table Pure Aquatics |
| Recommended Aquarium Size† | ~240 gal (~900 L) based on 30 mJ/cm² table Pure Aquatics+1 |
| Recommended Pond Size†† | ~6,000 gal (~22,500 L) based on 30 mJ/cm² table Pure Aquatics |
* Flow‑rates and dose assumptions depend on UVT (ultraviolet transmittance) of water and system conditions.
† Based on manufacturer’s pamphlet data (USA/UK units) summarised.
†† Based on “turnover every 3–4 hours” assumption for pond sizing.
Applications
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Medium‑to‑large aquariums seeking reliable UV sterilisation for water clarity, algae control or pathogen reduction.
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Outdoor ponds or water‑feature systems where higher water throughput demands strong, chemical‑free sterilisation.
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Recirculating systems and filtration setups (freshwater or marine) needing professional UV treatment.
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Systems that prioritise ease of maintenance, high quality components and long‑term reliability.
Benefits
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Improved water clarity & health – The 50 W lamp and optimised flow design reduce suspended algae, bacteria, parasites and other waterborne microorganisms.
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Large‑system capacity – With its higher flow rating relative to smaller models, this steriliser supports larger systems or higher flow volumes.
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Service‑friendly design – Unionised plumbing, single‑ended access and tool‑free cables make maintenance fast and simple.
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Long‑term durability – Built with quality materials, giving long service life and reliable performance.
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Chemical‑free sterilisation – Provides UV‑C disinfection without adding chemicals, safe for aquatic life and plants.
Installation & Maintenance Tips
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Install the unit after mechanical/biological filtration to ensure the water entering the UV chamber is clear and free of heavy particulates—this maximises UV effectiveness.
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Maintain the recommended flow rate through the unit; if flow is too fast the UV dose may be insufficient and sterilisation will be compromised.
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Replace the UV lamp annually (or as per manufacturer’s hours recommendation) even if visible brightness seems fine—UV output declines with time.
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Clean the quartz sleeve periodically to remove any scaling, film or bio‑growth that may reduce the amount of UV passing through.
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Ensure all unions are tight, leak‑free and properly sealed before starting.
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Monitor water clarity and system performance; if water clarity drops unexpectedly revisit flow, sleeve condition and scheduling of lamp replacement.
Summary
The XFLO XFL5‑50H‑2 UV Sterilizer offers a professional‑grade solution for larger aquariums, ponds and water systems where strong UV‑C sterilisation, high flow capacity and ease of servicing matter. If you’re looking for an effective, chemical‑free way to keep your water clear, healthy and free from microbial issues in a medium‑to‑large system—this model is a top choice.
