CTO Max with Fluoride Chlorine Removal and Alkaliser

CTO Max Twin Under Sink Water Filter with Fluoride Removal and Alkaliser

Name: CTO Max Twin Under Sink Water Filter with Fluoride Removal and Alkaliser | Living Whole
SKU: IT007196
Availability: InStock

$539.00 – $569.00 inc. GST

Feel confident about every glass – now mineral-rich and pH-balanced.

You care about what goes into your body, but tap water filled with fluoride, chlorine, PFAS, microplastics, and heavy metals, makes that hard.

That’s why we created the CTO Max Twin Undersink System with Alkaliser, a powerful, low-maintenance water filter that removes harmful contaminants and also adds beneficial minerals and gently raises the pH to deliver clean, mineral-rich, great-tasting water from your kitchen tap.

Because a water filter should do more than just remove toxins – it should help you thrive.

Meet the CTO Max Twin with Alkaliser – clean, mineral-rich water at your fingertips

Designed for health-conscious homes, this compact undersink water filtration system combines advanced contaminant removal with natural remineralisation and alkalisation – for water that tastes better and feels better in your body.

Dual-stage UK-made carbon block filters target fluoride, chlorine, chloramine, PFAS, microplastics, heavy metals, and organic contaminants.
The mineralising cartridge adds additional calcium, magnesium, and other beneficial minerals while gently raising the pH of your water.
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 AS/NZS 3497:1998.
DIY-friendly installation – fit it yourself with basic tools or ask your plumber. Either way, it’s simple.

What You’re Avoiding

Unwanted chemicals like PFAS, chlorine, and heavy metals
Acidic or flat-tasting water that doesn’t support your wellbeing
Constant second-guessing of your tap water

What You’ll Gain

Clean, toxin-free water that’s naturally mineralised and alkalised
Confidence that your water supports your wellbeing and lifestyle
A beautiful balance of purity and nourishment
Peace of mind knowing you’ve chosen a smart, sustainable solution

Alkaliser

AlkaHydrate (made in Asia)
Omnipure (Made in USA)

Clear

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

Leak Stopper and Filter Life Monitor

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

SKU: IT007196 Categories: Under Sink Water Filters, Fluoride Water Filters

Description

How We Got Here And Why It Matters

When we first looked into water filters, we were completely overwhelmed. So many options, so much jargon. That journey led us to start Living Whole, one filter at a time — from our first water distiller to benchtop water filters and now reverse osmosis. Everything in our shop is something we’ve personally researched and trust. Now, after almost a decade and over 2,000 happy customers, we’re proud to help others find the right water filter too.

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?
The system uses two Coldstream CTO Max cartridges and one remineralising cartridge (choose either the AlkaHydrate or US-made Omnipure model).
CTO Max Cartridges need replacing every 6–12 months, cost for the discounted twin pack is $219 (single cartridge $120).
AlkaHydrate or Omnipure remineraliser cartridge needs replacing every 2 years: AlkaHydrate: $89, Omnipure: $119.

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 43 (H) x 13(D)
Cartridge sizes: 9″ x 2.5″
Maximum flow rate: 2.5 litres per minute
Warranty: 5 years (housing)

Filter Cartridges

Coldstream CTO Max Replacement

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.

Alkahydrate OR Omnipure Remineraliser / Alkaliser Replacement

Choose the Right Cartridge for You
This system requires one of these cartridges to be replaced every 2 years to maintain optimal performance.

Both the AlkaHydrate (made in Asia) and the Omnipure (made in the USA) cartridges deliver excellent results – the choice comes down to your personal preference.

Also compatible with our reverse osmosis systems, both remineralisers pair beautifully with the CTO Max Twin when alkalisation is desired. They gently raise the pH and add beneficial minerals like calcium and magnesium – ideal for those who enjoy a smoother, more balanced drinking experience.

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 Componants

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:

Choose your filter – Order the CTO Max Twin with Alkaliser and become part of our Water Tribe.

We Build & Send – Each unit is assembled in Sydney and shipped with care.

Install & Enjoy – Fit it yourself or have a plumber install it. Enjoy clean, balanced, great-tasting water from your tap.

Clean Water Shouldn’t Be Complicated — Just Clear, Safe, and Ready

At Living Whole, we understand that you simply want to feel at ease about the water your family drinks every day.

To feel that way, you need a water filter that doesn’t just remove the usual suspects — like chlorine, heavy metals, and PFAS — but also targets fluoride and balances your water with natural alkalinity.

The problem is, tap water often contains a long list of unwanted contaminants. And even when you’re trying to make the best choices, that uncertainty can leave you feeling unsure and frustrated.

We believe no one should have to second-guess something as essential as the water they drink.

Here’s how it works:

Choose the CTO Max Undersink Filter with Fluoride Removal and Alkaliser
We prepare and assemble it for you, with all the parts included
Install it once — and enjoy clean, alkaline water every day with zero fuss

Order your under sink filter today, so you can stop worrying about hidden contaminants and start drinking with calm, confidence, and clarity.

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.

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

Installation Guides

Data Sheets & Test Reports

Additional information

Weight	2.5 kg
Dimensions	36 × 36 × 15 cm
Alkaliser	AlkaHydrate (made in Asia), Omnipure (Made in USA)

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CTO Max Twin Under Sink Water Filter with Fluoride Removal and Alkaliser

Feel confident about every glass – now mineral-rich and pH-balanced.