Compact Ultra High Purity Under Sink Reverse Osmosis System – 3 Stage
$609.00 inc. GST
You want to trust the water your family drinks. Let’s take the guesswork out of finding a water filter that filters fluoride and all other impurities.
- US made filters and 0.0005 micron RO membrane remove fluoride, chlorine, PFAS, bacteria, viruses, microplastics, heavy metals.
- No remineralisation stage – just ultra-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 undersink system with filters, tap, tank, and all parts.
- Filter replacement costs from $69 per year, $149 for the RO membrane every 3–6 years.
Description
Certified Under Sink Water Filtration
This system meets the WaterMark specification AS/NZS 3497 Drinking water treatment unit – Plumbing requirements.
Certificate Number 52014.
- Fluoride
- PFAS
- Aluminium
- Barium
- Cadmium
- Chlorine
- Chromium
- Copper
- Cryptosporidium & Giardia
- Cysts
- e. Coli Bacteria
- Heavy Metals
- Hydrocarbons
- Iron
- Lead
- Manganese
- Mercury
- Microplastic
- Nitrate
- PCB’S
- Pesticides & Herbicides
- PFAS
- Potassium
- Radium
- Sediment, Dirt & Rust
- Selenium
- Sodium
- Fluoride
- Aluminium
- Barium
- Cadmium
- Chlorine
- Chromium
- Copper
- Cryptosporidium & Giardia
- Cysts
- e. Coli Bacteria
- PFAS
- Heavy Metals
- Hydrocarbons
- Iron
- Lead
- Manganese
- Mercury
- Microplatic
- Nitrate
- PCB’S
- Pesticides & Herbicides
- Potassium
- Radium
- Sediment, Dirt & Rust
- Selenium
- Sodium
Everything You Want to Know (At a Glance)
Quick Answers
What’s the difference between the Compact 4-stage and Compact 3-stage compact RO system?
The compact 4-stage reverse osmosis system includes a final remineralisation cartridge that adds back calcium and magnesium for improved taste and mineral balance. This 3-stage system skips this step, focusing purely on removal without adding minerals back in.
What’s makes this Compact system different?
The size! The compact system is with 30x18x17cm a lot more space efficient than the regular 32x42x11cm.
Can I use this RO system for tank and bore water?
Reverse osmosis systems need consistent water pressure to push water through the membrane. Tank or bore water systems often don’t provide enough pressure and may contain sediment or bacteria that can clog or damage the system. For these sources, we recommend our Rain Water Tank Filter systems, which are designed to handle untreated water more effectively.
How often do I need to change the cartridges and how much do they cost?
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 300W x 180H x 170D mm
- 5 litre tank Dimensions 317W x 203D mm
- 5 year warranty.
Replacement Filter Cartridges
Effectively reduces PFAS, Chlorine, Chemicals, Taste & Odour. For best results, we recommend replacing every 12 months or 7,500L depending on water quality. Made in USA ($69).
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 faucet & tank 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 enjoy clean, ultra-pure water on demand.
How We Got Here And Why It Matters
When we first looked into water filters, we felt overwhelmed too. That’s why we started Living Whole – built on research and trusted products. Nearly 10 years on, with 40+ years of combined team experience, we’ve helped thousands find the right filter for their home. Every product we offer has been carefully researched and chosen because it works – and because we use it ourselves.
Clean Water Shouldn’t Be Complicated — Just Clear, Safe, and Ready
At Living Whole, we understand you want to feel confident about what goes into your body and that starts with clean, reliable water from your own tap.
The problem is, tap water can contain things like chlorine, PFAS, microplastics, and heavy metals. And figuring out how to avoid them often feels overwhelming.
Clean, safe water shouldn’t be complicated.
Here’s how it works:
- Choose the setup that suits your needs — tap or tank, with optional add-ons
- We assemble your RO system and send it with everything you need
- Install it under your sink and enjoy ultra-pure, great-tasting water anytime
Order your reverse osmosis water filter today so you can stop stressing over what’s in your water — and start drinking with clarity, and confidence.
What Are You Avoiding?
- No more second-guessing what’s flowing from your tap
- No more exposure to fluoride, PFAS, microplastics, heavy metals
- No more bottled water and clutter on your countertop
What You’ll Gain
- Confidence that every glass of water is ultra-pure
- A system that quietly does the job
- More space on your bench, free from bottles and clutter
Compact, Space Saving Design
Our Undersink Reverse Osmosis System is designed to fit neatly into even the smallest under-sink spaces — no bulky or complicated setups. It’s the perfect solution for modern kitchens where space is limited but clean, purified water is a priority. Quiet, efficient, and discreet, it delivers high-quality filtration without taking over your cupboard.
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.
Additional information
| Weight | 2 kg |
|---|---|
| Dimensions | 25 × 25 × 42 cm |
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