CTO Max Twin Under Sink Water Filter with Fluoride Removal
$449.00 – $469.00 inc. GST
It’s hard to feel confident about the water you drink every day, especially with concerns about contaminants. You care about your health, and you shouldn’t need a science degree to trust what’s coming out of your tap!
- UK-made ceramic & carbon block filters that target fluoride, chlorine, chloramine, PFAS, microplastics, heavy metals, bacteria.
- Certified to NSF/ANSI 53 & NSF/ANSI 42 standards so you know it works.
- Hand-built in Sydney, backed by a 5-year housing warranty, and fully compliant with Watermark standard AS/NZS 3497:1998.
- DIY-friendly setup – install this under sink filter it with basic tools, or have a plumber do it for you. It’s simple either way.
Description
Certified Under Sink Water Filtration
This system meets the WaterMark specification AS/NZS 3497:1998 Amdt 1 2001 Drinking water treatment unit – Plumbing requirements.
Certificate Number 23124.
- Fluoride
- Aluminium
- Barium
- Cadmium
- Chloramine
- Chlorine
- Chromium
- Copper
- Cryptosporidium & Giardia
- Cysts
- e. Coli Bacteria
- Heavy Metals
- Hydrocarbons
- Iron
- Lead
- Manganese
- Mercury
- Microplastics
- Nitrate
- PCB’S
- PFAS
- Potassium
- Radium
- Sediment, Dirt & Rust
- Selenium
- Sodium
- Fluoride
- Aluminium
- Barium
- Cadmium
- Chloramine
- Chlorine
- Chromium
- Copper
- Cryptosporidium & Giardia
- Cysts
- e. Coli Bacteria
- Heavy Metals
- Hydrocarbons
- Iron
- Lead
- Manganese
- Mercury
- Microplastics
- Nitrate
- PCB’S
- PFAS
- Potassium
- Radium
- Sediment, Dirt & Rust
- Selenium
- Sodium
We’ve Been In Your Shoes
We’re more than just a water filter shop. We’re a family business, born from our own journey to improve wellbeing with cleaner water. With over 40 years of combined experience, we’ve helped thousands of households find their perfect water filter system. Now, we’re dedicated to simplifying the process for others, providing straightforward advice and products we truly stand behind. Here’s what our customers say:
Everything You Want to Know (At a Glance)
Quick Answers
How often do I need to change the cartridges and how much do they cost?
Two Coldstream CTO Max cartridges: Every 6 to 12 months ($219 discounted twin set, individually for $120 each).
Can I install this under sink filter myself?
Yes, you can install this undersink water filter yourself if you have basic plumbing skills. It’s WaterMark approved, meaning it meets Australian plumbing standards. If you prefer, your local licensed plumber can install it for you as well.
What contaminants does it remove?
This under sink water purifier removes over 130 chemicals incl. chlorine, chloramine, fluoride, herbicides & pesticides, bacteria, virus, PFAS, microplastics, heavy metals.
How do I replace the cartridge?
Simply twist open the housing, remove the old cartridge, insert the new one, and twist the housing closed. No special tools required – it’s quick and easy!
What happens if it doesn’t work for me?
We’re here to guide you through every step, and while issues are rare, if something truly doesn’t work out, we’ll always honour our return policy on unused systems.
Specifications
- Filter output up to 10,000 litres, for optimal performance we recommend replacing the filters every 6-12 months
- 0.9 Micron absolute
- Dimensions: 23(W) x 32 (H) x 13(D)
- Cartridge sizes: 9″ x 2.5″ (blue caps), 10″ x 2.5″ (red caps)
- Maximum flow rate: 2.5 litres per minute
- Warranty: 5 years (housing)
Filter Cartridges
The system requires 2 of these cartridges to be replaced every 6-12 months for optimal performance.
You want clean, safe water for your family—and the Coldstream CTO Max helps you get there. This all-in-one cartridge removes over 130 contaminants, including Fluoride, Chlorine, Chloramine, PFAS, heavy metals, bacteria, and viruses. With its advanced dual-layer design, it fits standard benchtop water filter & undersink water filters and delivers peace of mind with every glass. Certified to NSF standards and built in the UK, it’s your powerful ally in creating a healthier home through pure, great-tasting water.
Hassle-Free Installation
Installation of your twin undersink water filter 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!
Installation Diagram
Filter Components
- A – CTO Max Cartridge
- B – CTO Max Cartridge
- 1 – Housing Sump
- 2 – Housing Cap
- 3 – Stainless Steel Bracket
- 4 – Pressure Limiting Valve (PLV)
- 5 – John Guest Elbow (with red clips)
- 6 – Brass Nipple
3 Simple Steps to Safer Water — with Free Shipping Australia-Wide:
Join our Pure Water Tribe – Choose your custom water filter system and become part of a community that values clean, safe water.
Crafted for you in Sydney – Our team hand-builds your water filter to order and ships it with tracking, so you know its on its way.
Install your water filter simply, turn on your tap and feel at home with others who trust what they drink.
Clean Water Shouldn’t Be Complicated — Just Clear, Safe, and Ready
At Living Whole, we understand you want to feel confident about what you’re putting into your body. That means having pure trustworthy water right from your tap — no second-guessing, no stress.
The frustrating reality is that tap water often often contains unwanted chemicals like chlorine, PFAS, and heavy metals, which makes you feel worried and overwhelmed about your family’s wellbeing.
We believe you shouldn’t need a science degree just to ensure your home’s drinking water is safe.
That’s why we created the CTO Max Twin Undersink Water Filter. It’s designed to make clean living simple.
Here’s how it works:
- Choose the CTO Max Undersink Water Filter with desired faucet.
- We assemble your under sink filter for you and send it with everything you need.
- Install it easily and enjoy pure, safe water every day for years to come.
So order your best undersink water filter today, so you can stop wasting time researching or relying on bottled water — and start drinking with clarity, confidence, and peace of mind
What Are You Avoiding?
- No more second-guessing if your water is safe to drink
- No more worries about chemicals like PFAS or chlorine
What You’ll Gain
- Peace of mind and confidence, knowing your family drinks clean, filtered water
- Freedom from bottled water and kitchen clutter
- Control of what goes into your body
- Alignment with your values – balance, sustainability, simplicity
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
Data Sheets & Test Reports
Additional information
| Weight | 2 kg |
|---|---|
| Dimensions | 33 × 32 × 13 cm |
| Choose Size: | 9 Inch, 10 Inch |
4 reviews for CTO Max Twin Under Sink Water Filter with Fluoride Removal
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Elsie Field –
I was a bit nervous about installing the CTO twin undersink system but it turned out to be much easier than I expected! Everything fit perfectly under the sink and now I absolutely love the taste of the water. It’s so fresh and clean and gives me peace knowing fluoride and other nasties are being filtered out. Highly recommend!
Living Whole –
Thank you for your review, Elsie. We’re happy to hear you found the installation easier than expected and you’re enjoying your tap water now.:)
Kirra Lee Parr –
Easy installation, very helpful if you call to chat with them. Delicious tasting water.
Living Whole –
Thanks for the review Kirra Lee. The Doulton twin is an excellent under sink water filter and we’re glad to be able to help.
Ian –
I recommend this product for clean safe water
Living Whole –
Hi Ian, Thank you for your feedback. 🙂
Ben –
.