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3.9 lpm Ultra Violet system (UV3.9WL)


RRP £199.95

Long Life UV Lamp With Premium Quartz 

Product Options:

Ultraviolet (UV) Water Filter system RRP 199.95

Suitable for;

  • well water,
  • water supplied from a borehole or a spring/stream
  • harvested rainwater
  • improving the quality of your mains supply

If you are looking to remove contamination such as bacteria and/or viruses from your water supply; if your water is not of the best quality or you want to protect vulnerable household members such as old, young or infirm, then UV treatment is an excellent solution.

UV disinfection is a proven, reliable and cost effective way of disinfecting water. It is more effective than traditional treatments and it is also an environmentally responsible way of treating your water as there are no disinfection by-products. UV is chemical free and safe. UV will not alter the water chemistry and its constituents such as pH, taste, odour or colour, as all remain unchanged.

UV systems can destroy 99.9% of harmful micro-organisms. Ultraviolet (UV) is a type of energy found in the electromagnetic spectrum between x-rays and visible light; the UV energy attacks the core of the micro-organism destroying the DNA (or RNA in the case of viruses) rendering the micro-organism inactive.

Our UV systems consists of a medical grade, nano polished stainless steel chamber which houses a UV lamp (the light bit that is sometimes referred to as a bulb) and a highly polished quartz sleeve. Water flows in the chamber allowing the UV light to penetrate the water, sterilising the micro-organisms. It is important that the water being treated is a clear as it can be, as sediment particles in the untreated water can cause shadowing and prevent the UV light from reaching the micro-organisms.

To this end, we always recommend that you install at least one pre-filter (down to 5 micron minimum).


We are an ISO 9001 certified business which means that we operate to a very high, internationally recognised standard.

We have worked closely with our partners for many years developing and ensuring that our UV sterilisation equipment and systems are of the highest quality and extremely durable. Our systems employ a low-pressure mercury vapour discharge lamp which completely surrounds our specially manufactured UVC transparent quartz structure. The lamp produces a very strong spectral line in the shortwave region which is the level most lethal to micro-organisms.

Cheaper, sub quality systems will not offer the same level of performance or length of service.


  • Designed to zap chlorine resistant parasites such as Cryptosporidium and Guardia; harmful bacteria like E.Coli and viruses not visible to the naked eye, including corona viruses.
  • Specially designed and tested regular output lamp provides consistent and reliable UV output over the entire life of the lamp (9000 hours) to ensure continuous purification.
    Inner quartz sleeve with highly polished quartz structure to provide optimum wavelength penetration.
  • Easy to maintain and service with easy lamp replacement.
  • Equipped with a slip connector that allows for easy removal of the lamp without special tools. The lamp can be changed without the water having to be switched off.
  • Built with a durable heavy duty 304 internal nano polished stainless steel chamber to prolong life and eliminate ultra violet degradation whilst allowing full refraction surface for the UV light.
  • Offers consistent contact levels of sterilisation not offered in lower quality UV systems
  • Audible alarm and visual indicator in the unlikely event of lamp failure.
  • CE standard ballast power supply protection.


Flow Rate: 3.9 llitres per minute
Power ratings 220/240VAC 10W
Dimension of chamber:
Length 260 x depth 50mm
Max Pressure 10 Bar G (140psi)
Test Pressure 15 Bar G
Chamber Construction 304 medical grade nano stainless steel
Standard Connection - 1/4" Male Thread with Adapter fitting for 1/4" flexible tube 

If you intend to install this product to a domestic or public water supply we advise you install pre treatment to a minimum rating of 5 microns.

When placing your order, purchase a replacement lamp from the Options below and you will save on additional postage.


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Delivery Options:

Standard Delivery by DPD (3-5 working days)

Next Day Delivery by DPD - £15.00

We are Here to Help

If you have any questions about our products, please pick up the phone and speak to one of our experts.

Call us on 0116 2763334. Our help line is open 9.00am - 5.00pm GMT, Monday to Friday.

If phone calls aren't for you, then our live chat is also available on our website 9.00am - 5.00pm GMT, Monday to Friday.

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