Clean water. Clean living.
The right filter starts with your water source
Town, tank, bore or caravan, every source carries something different. Our systems are built around yours, and they keep the natural minerals in.
- Owned, designed and assembled in Australia by a Naturopath
Town water
Treated to be safe, then piped a long way to reach you.
What people notice
- Chlorine and chloramine
- Added fluoride
- PFAS
- Metals from ageing pipes
Built to handle it
- 1Fluoride Filter
- 2Carbon Ultimate Filter
- 3H2 Booster (triple)
Tank water
Falls clean, then runs across your roof and sits in a tank.
What people notice
- Bacteria and cysts from droppings
- Sediment
- Spray drift and smoke
- Low pH
Built to handle it
- 1UltraFilter 0.01
- 2Carbon Ultimate Filter
- 3H2 Booster (triple)
Bore, river or well
Untreated, and carries whatever the ground holds.
What people notice
- Iron and rust staining
- Rotten-egg smell
- Manganese
- Hardness and microbes
Built to handle it
- 1UltraFilter 0.01
- 2Bore Carbon Filter
- 3H2 Booster (triple)
Travelling around in a caravan or RV?
A different source at every stop: town one day, tank or bore the next
What people notice
- Unknown water quality
- Sediment
- Taste and smell
- Microbes
Built to handle it
A setup tailored to how you travel.
Shop by water source
Pick where your water comes from. Every system comes as a twin or triple, with free step-by-step installation, filter replacement and cleaning guides.
Town water
For chlorine and chloramine taste, added fluoride, PFAS and metals from ageing pipes.
Shop town water
Tank water
For roof runoff, droppings, sediment and soft, slightly acidic rainwater.
Shop tank water
Bore, river or well
For iron staining, rotten-egg smell, manganese, hardness and microbes.
Shop bore water
Caravan and RV
For a different water source at every stop, wherever the road takes you.
Shop caravan and RV
Under the sink or on the bench
Every source comes as a twin or triple. Go under the sink to keep your bench clear, or on the bench with no plumbing changes.
Twin Under Sink
WaterMark certified housings
Triple Under Sink
WaterMark certified housings
Triple Above Sink
No plumbing changes
Paired with an ioniser
Filtered water straight into your ioniser
Why source-specific
Most filters are built for one kind of water and sold for all of them. That’s why so many underperform.
Built for what's actually there
A filter made for chlorinated city water clogs fast on bore water’s iron. One made for bore water is overkill for rain. We start with your source and build from there.
The minerals stay in
Unlike reverse osmosis, our systems target contaminants and leave naturally occurring calcium, potassium and magnesium in your water. No wastewater, no brine line, no storage tank.
Ioniser-ready
Every system is designed to sit in front of a water ioniser. Cleaner source water means better output and less strain on your plates.
Own a water ioniser?
Your ioniser is only as good as the water going into it. Chlorine, fluoride, sediment and hard minerals all work against the plates, and scale is the number one reason performance drops.
Our triple systems add the H2 Booster for ionic minerals and hydrogen support. Pair a system with the Kitchen Water Softener in hard water areas for slower scaling, and keep up your daily 6.0 pH run and regular E-cleaning.
Three habits for healthy plates
- Pre-filter the source. Take out chlorine, sediment and metals before they reach the machine.
- Run 6.0 pH daily. 30 to 60 seconds reverses polarity and loosens light deposits.
- E-clean regularly. Every 2 to 4 weeks, more often in hard water.
Keep it running
Replacement filters
Your set delivered every 9 months on schedule so you never run a spent cartridge.
Subscribe and save 10% on every replacement filter
Water report
Your suburb’s supply data in plain language: hardness, fluoride, chlorine and what it means for your setup. Town water only.
$15, sent within 72 hours
Taps and softeners
Premium 304 stainless steel taps and fittings, plus Kitchen and Shower Water Softeners for slower scaling.
Dual tap bundle saves $50
From our customers
“Best prefilters on the market. They last long, filter out all the bad stuff and great customer service.”
Google review
“The water tastes smooth… the support from Nate is fantastic.”
Google review, Triple Under Sink
“So glad that we have the dual pre-filter setup in our caravan as there have been some questionable potable water sources.”
Google review, caravan owner
Meet Naturopath Nate
As a Naturopath, herbalist and nutritionist of 15+ years, water is one of the first things I ask my clients about. I started PreFilters because I couldn’t find a filter built for the real differences between town, tank and bore water, one that also kept the natural minerals in. Every system I build is one I’d happily put in my own kitchen!
– Nate, Naturopath and founder of PreFilters
Know what's in your water
Plain-English articles from Naturopath Nate on Australian water quality, filter care and getting the most from your ioniser.