Drinking water

Purest RO System.

Drinking water, refined.

Purest RO System is a reverse osmosis system that lives under the sink. Sediment and carbon pretreatment shields a membrane of thin-film composite, and the treated water waits in a storage tank for the moment you reach for a glass from its own faucet.

Book a free water test See the parts

Sediment and Carbon PretreatmentReverse Osmosis MembraneStorage Tank

Type: Under-sink reverse osmosis
Where it goes: Under the sink
Handles: Drinking and cooking water
Begins with: A free water test

Girl holding a tall glass of water at a kitchen sink

Glass of sparkling water beside a running chrome tap, with houseplants in soft focus

What it does

Water for drinking, taken one step further

I
Refined for the glass
It is designed to reduce what is dissolved in the water, minerals above all, along with other constituents you would rather not drink, some of which ordinary filters let through.
II
A membrane well looked after
Pretreatment of sediment and carbon guards the membrane, and a last polish helps the water taste clean at the faucet.
III
Ready when you are
A storage tank keeps treated water in reserve, so a glass is available the moment you want one.
IV
A faucet of its own
A separate faucet, mounted at the sink, keeps what you drink and cook with apart from the everyday tap.

The parts

Pretreatment, membrane, tank and faucet

Tap a numbered marker, or choose from the parts listed. Markers appear only on parts that the image really shows.

Purest RO System, each part marked with a number

How it goes

How Purest RO System finds its way to your home

A young girl at a kitchen faucet, filling her glass

4 steps, start to finish

I
A free water test
It begins with a quiet look at your water: chlorine, hardness, pH, TDS, iron and manganese. The test costs nothing and asks nothing of you.
II
A considered recommendation
Your results choose the system, never the other way round. You see one fixed price once the test is done.
III
Careful installation
Purest RO System is fitted beneath the sink, with a faucet of its own for drinking and cooking.
IV
Water you enjoy
Treated water on tap, for whenever you want a glass.

Where it belongs

Matched to your water, not picked from a catalogue

It settles into the cabinet beneath your sink and supplies a faucet of its own. Pairing it with a water softener, or with filtration for the whole house, gives the RO system cleaner water to begin with.

Each recommendation starts with the free test, and a price is named only once your readings are in.

Man and girl smiling at a kitchen counter, each holding a glass of water

Gallery

Purest RO System at home: the moments it serves

Purest RO System

Questions about this system

IWhat does reverse osmosis do?

A very fine membrane does the work. Water is pressed through it, the dissolved minerals are turned away and sent to the drain, and what comes through is the treated water for your faucet.

IIIs there an alkaline option?

Yes, there is an alkaline version, in which a mineral step follows the reverse osmosis, bringing in calcium and magnesium, raising the pH and rounding out the taste.

IIIDoes an RO system replace a softener?

Each has its own work. A softener guards the whole house against hardness, and reverse osmosis refines what you drink and cook with. Plenty of households enjoy both.

Pairs well with