Make borehole and rain water safe
If your water comes from a borehole, rain tank or well, the one thing an ordinary filter can't promise is that it's free of bacteria. A UV steriliser passes your water over an ultraviolet lamp that neutralises bacteria, viruses and other microorganisms — no chemicals added, no change to the taste. You simply choose the size that matches your flow, from a single drinking tap to the whole house.
- Borehole water
- Rain tanks
- Well points
- Final-stage protection after filtration
The range
4 Pin UV Steriliser 6W 1.8L/Min - 1/4 inch PortsA compact unit for a single drinking-water point — it fits under a counter and connects to standard 1/4-inch filter tubing. Eliminates up to 99.9% of bacteria, viruses and protozoa without chemicals or any change to the water's taste.Best for: Undersink and RO drinking-water systemsFull details & specsSpec sheet (PDF)
4 Pin UV Steriliser 25W 22L/Min - 3/4 inch PortsTreats up to 22 litres a minute through 3/4-inch ports — a sensible fit for a smaller home's supply line. Stainless-steel chamber, easy DIY setup, and a lamp rated for 8,000 hours (about a year).Best for: Smaller homes on tank or borehole waterFull details & specsSpec sheet (PDF)
4 Pin UV Steriliser 30W 30L/Min - 3/4 inch PortsA step up in power for larger households: 30 litres a minute of chemical-free disinfection, destroying up to 99.9% of bacteria, viruses and microorganisms. Corrosion-resistant stainless-steel housing with quick lamp replacement.Best for: Larger households needing more flowFull details & specsSpec sheet (PDF)
4 Pin UV Steriliser 55W 45L/Min - 1 inch PortsThe whole-house workhorse: 45 litres a minute through 1-inch ports, now built with 30% thicker steel and a premium ballast that's less sensitive to power fluctuations and surges. Chemical-free, with an 8,000-hour lamp (about a year).Best for: Whole-house supply on 1-inch pipeworkFull details & specsSpec sheet (PDF)
4 Pin UV Steriliser 55W 45L/Min - 3/4 inch PortsThe same 55W performance with 3/4-inch ports to suit smaller pipework — up to 45 litres a minute, with the improved thicker-steel build and premium ballast. Designed to sit as the final stage of your filtration system, sterilising water just before use.Best for: Whole-house supply on 3/4-inch pipeworkFull details & specsSpec sheet (PDF)
4 Pin UV Steriliser 110W 90L/Min - 1 inch PortsThe biggest in the range: 90 litres a minute through 1-inch stainless-steel ports, built for continuous 24/7 operation. Suited to farms, aquaculture and commercial water systems where the volumes are simply beyond a household unit.Best for: Farms, commercial sites and high-volume useFull details & specsSpec sheet (PDF)
Which one is yours?
You want protection at one drinking tap, or after an undersink or RO system
The 6W with 1/4-inch ports connects straight into standard filter tubing and treats water at drinking-tap flow.
Your whole home runs on borehole or rain-tank water
The 25W suits smaller homes and the 30W larger households — both use 3/4-inch ports to fit typical domestic pipework.
You have a large home or high water demand
The 55W handles 45 litres a minute — choose the 1-inch or 3/4-inch port version to match your pipework.
You're supplying a farm, guesthouse or business
The 110W treats 90 litres a minute and is built for continuous round-the-clock operation.
Still weighing it up? The finder narrows it down in three questions.
Worth knowing before you buy
A UV steriliser doesn't filter anything out — no sediment, chemicals, tastes or odours. It deals with microorganisms only, which is why it's designed to be installed as the final stage after your filters.
The lamp only sterilises while it has mains power, so water drawn during a power outage passes through untreated — worth knowing if your area load-sheds.
For very high flows beyond 90 litres a minute, or complex commercial installations, it's worth asking The Water Filter Factory team for advice rather than guessing at sizing.
Keeping it running
The UV lamp is rated for 8,000 hours — roughly a year of use — so plan on an annual lamp change; replacement ballasts and quartz-sleeve O-rings are also available from The Water Filter Factory when your unit needs them.
Register your filter and we’ll remind you when it’s due — with the exact replacement linked. Set it up once
Ready when you are
Buy at our store or your favourite marketplace — same product, same support, same promise.