Product Details
Product information, pricing, and purchase options
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Starting from $18/week
Flexible fortnightly payments
Standard faucet included
Filters to 0.0001 Microns — Advanced reverse osmosis membrane technology removes up to 99% of dissolved contaminants, including PFAS, fluoride, lead, arsenic, nitrates, heavy metals and Total Dissolved Solids (TDS).
The Gold Standard in Drinking Water Purification — Widely recognised as one of the most effective residential water filtration technologies available, delivering exceptionally pure drinking water.
The Gold Standard of Drinking Water
THE RO SYSTEM, EXPLAINED

The RO filter comes standard in our packages and excels in fluoride and PFA removal. It adjusts TDS to deliver distilled water via a 2-way faucet, with a 3-way optional available. Ideal for baby formula, CPCP machines, and PFA risk reduction.

The T33 post-carbon filter enhances water taste and removes residual odours. It's a standard feature in our packages offering the final polish to your water for improved flavour and clarity after the RO filter. Ideal for cooking, beverages, and ensuring a pleasant water experience.

ALKALINE BALLSEffect: Adds trace minerals back into the water, raising pH and softening the taste.
ANTIBACTERIAL BALLSEffect: Inhibits bacterial growth in the water as it passes through.
SMALL MOLECULAR BALLSEffect: Mineral media that conditions the water and softens the taste.
MAIFAN STONEMaifan mineral stone — adds trace minerals as water passes through.
Faucet Options
One tap, or two
your choice
Every reverse osmosis system comes with its own dedicated faucet, included as standard. If you'd rather not add a second tap to the sink, a 3-way mixer replaces your existing tap entirely — hot, cold and filtered water from one outlet.
Included as standard
Dedicated tap

A slimline tap installed alongside your existing mixer, dispensing filtered water only. Your current tap stays exactly as it is.
Upgrade option
3-way mixer

Replaces your existing kitchen tap. One outlet delivers hot, cold and filtered water, with a separate handle for the filtered line.
Optional upgrade: 3-Way Mixer Options
Your Reverse Osmosis system comes with a standard faucet. Prefer a designer 3-way mixer? Choose a finish to add one.
Dimensions
RO system
Height
20 cm
Length
30 cm
Width
8 cm
Pressure tank
Height
34 cm
Length
23 cm
Width
23 cm
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Book a ConsultationThe OneWater Under-Sink Reverse Osmosis System delivers bottled-quality drinking water from a dedicated tap at your kitchen sink. Its multi-stage membrane reduces up to 99% of contaminants — including PFAS, microplastics, chlorine, heavy metals and dissolved solids. Every system includes the under-sink unit, a standard faucet (with optional designer upgrades), professional installation by a licensed plumber, the first annual filter service and lifetime support from the OneWater team.

