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Ultra High Purity Under Sink Reverse Osmosis System – 4 Stage

$719.00 inc. GST

You want to trust the water in your home, not wonder what’s really in it.

US made filters and 0.0005 micron RO membrane remove fluoride, chlorine, PFAS, bacteria, viruses, microplastics, heavy metals.
No remineralisation stage – just pure water.
Features NSF-certified components and is Watermark certified (AS/NZS 3497:1998).
Hand-built in Sydney with US-made parts. Includes a 5-year housing warranty.
A complete no-electricity-required RO system with filters, tap, tank, and all parts.
Filter replacement costs from $69 per year, $149 for the RO membrane every 3–6 years.

Filter Tap *

Choose the tap for your under sink water filter

Stainless Steel High Loop Brushed Chrome +$85.00

3-Way Mixer Tap Standard Chrome +$319.00

Reverse Osmosis Tank *

Leak Stopper and Filter Life Monitor

Leak Stopper and Filter Life Monitor incl. Adaptors (+$99.00)

SKU: IT003834 Categories: Under Sink Reverse Osmosis, Fluoride Water Filters, PFAS Water Filters, Reverse Osmosis Water Filters, Under Sink Water Filters

Description

Certified Countertop Water Filtration

This system meets the WaterMark specification AS/NZS 3497 Drinking water treatment unit – Plumbing requirements.
Certificate Number 52014.

Everything You Want to Know (At a Glance)

Quick Answers

What’s the difference between the 5-stage and 4-stage RO system?
The 5-stage system includes a final remineralisation cartridge that adds back calcium and magnesium for improved taste and mineral balance. The 4-stage system skips this step, focusing purely on removal without adding minerals back in.

Can I use this RO system for tank and bore water?
This system is best suited for town (mains) water. Tank water sources often lack the strong pumps needed to provide the water pressure required for RO systems. For tank or bore water, please explore our Rain Water Tank Filter options that provide additional sediment and bacteria removal commonly found in untreated sources.

How often do I need to change the cartridges and how much do they cost?
Sediment Pre-Filter: Every 12 months ($69)
Coconut Carbon Filters (2x): every 12 months (2x $69)
Membrane: Every 3–6 years – depending on water quality and usage ($149)

Specifications

Maximum flow rate of 3 litres per minute.
Max filter output of approximately 200 litres per day (@60psi 25ºC).
Micron Rating: 0.0005 micron
RO Filter system dimensions 320W x 420H x 110D mm.
5 litre tank Dimensions 317W x 203D mm (upgrades available).
5 year warranty.

Replacement Filter Cartridges

1st Stage Omnipure Q Series Sediment Pre Filter Block WL5605

Removes particulate matter such as sediment, rust, dirt, cloudiness from the water. Made in USA. For best results we recommend replacing every 6-12 months. Made in USA ($69).

2nd & 4th Stage Omnipure Q Series GAC Carbon Filter WL5640

Effectively reduces PFAS, Chlorine, Chemicals, Taste & Odour. For best results, we recommend replacing every 6-12 months or 7,500L depending on water quality. Made in USA ($69).

3rd Stage Omnipure Q Series Reverse Osmosis Membrane WL5572

Effectively removes up to 99% of PFAS, fluoride, microplastics, bacteria. The membrane screens to 0.0005 micron for pristine drinking water. Replace every 3-6 years. Made in USA $149).

Hassle-Free Installation

Installation of your reverse osmosis system is straightforward with the included guide and complete package of parts. All necessary fittings, tubing, and adapters are provided for a seamless setup.

We want to ensure your installation experience is easy and stress-free. Please reach out to our support team with any questions!

Storage Tanks

3 Simple Steps to Safer Water — with Free Shipping Australia-Wide:

Choose your reverse osmosis system with desired setup and join our Pure Water Tribe.

Hand-built for you in Sydney and shipped with tracking so you know it’s on the way.

Install, turn on your tap and feel at home with others who trust what they drink.

Nearly a Decade of Helping Australians Find the Right Filter

We founded Living Whole to take the confusion out of choosing a water filter. Backed by nearly 10 years in business and over 40 years of combined team experience, we’ve helped thousands of Australians find the right filter for their home — research-backed, reliable, and built to last.

Clean Water Shouldn’t Be Complicated

At Living Whole we know you want water you can trust – clear, safe, and ready straight from your tap.

But most tap water tells a different story. It often carries chlorine, fluoride, PFAS, microplastics, and heavy metals, leaving you worried an second-guessing what’s in every glass.

You shouldn’t need a science degree to make sure your water is safe.

That’s why we created the Ultra High Purity Under Sink Reverse Osmosis System – to make clean living simple.

You chose your setup, we assemble your under sink reverse osmosis for you, and you’ll enjoy ultra-pure, great-tasting water on demand.

Enjoy the peace of mind that comes with knowing every glass of water in your home is clean, pure, and safe.

What Are You Avoiding?

No more second-guessing what’s flowing from your tap
No more bottled water and clutter on your countertop
No more research fatigue trying to figure out what works

What You’ll Gain

Every glass becomes a quiet reassurance
Feeling confident about what comes out of your tap
Control of what goes into your body
Peace of mind

Choose Your Under Sink Water Filter Tap

All our under sink water filter taps include a base plate and connection fittings.
* Please Note: the width (W) refers to the dimension from the centre line of the tap body to the centre of the spout.

Retro with High Loop

Standard Retro faucet in a high loop design and long reach.

125mm W x 235mm H

Metro with High Loop

Standard Metro faucet in a high loop design.

160mm W x 250mm H

Antique

Standard Antique faucet in a high loop design.

125mm W x 235mm H

Euro with Long Reach

Standard Euro faucet in a long reach design.

150mm W x 230mm H

Side Lever High Loop 3-Way Mixer Chrome

The Side Lever High Loop 3-Way Mixer Tap in Chrome features a sleek high-loop design, providing hot, cold, and filtered water from a single tap.

203mm W x 365mm H

Side Lever Long Reach 3-Way Mixer Chrome

The Side Lever Long Reach Mixer Tap features a simple yet elegant design, providing hot, cold, and filtered water from a single tap.

195mm W x 325mm H

3-Way Mixer Tap Standard Chrome

The 3-Way Mixer Tap Standard Chrome comes in a sleek long-reach design, providing hot, cold, and filtered water from a single tap.

245mm W x 180mm H

Stainless Steel 3 Way High Loop Matte Black Mixer Tap

The Stainless Steel 3 Way Mixer Tap features a high loop design in a matte black finish, providing hot, cold and filtered water from a single tap.

225mm W x 400mm H

How does the Reverse Osmosis Membrane Work?

A reverse osmosis membrane is a thin film with tiny pores that permit only water molecules to pass through, blocking all contaminants. It’s made of a semi-permeable material that allows water flow but blocks dissolved salts, organics, bacteria, and pyrogens. When pressurised, pure water diffuses through the membrane into the permeate flow, leaving contaminants behind. Reverse osmosis removes up to 99% of impurities.
Polluted water is forced through the semi-permeable membrane by mains pressure. Pure water passes easily, while pollutants larger than.0005 microns are washed away into a waste stream that goes down the drain. This waste stream contains all of the filtered-out contaminants, including pesticides, metals, bacteria, and viruses. Reverse Osmosis systems are consistently one of the better PFAS water filters and water filters that filters fluoride as well.

Installation Guide

Data Sheets & Test Reports

Additional information

Weight	2 kg
Dimensions	25 × 25 × 42 cm

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