Twin Undersink Water Filter Sediment CTO Max

CTO Max Twin Under Sink Water Filter – Sediment & Fluoride Shield

$449.00 inc. GST

Remove up to 88.9% of fluoride, PFAS, and heavy sediment right from your kitchen sink. This twin-stage system combines high-capacity sediment filtration with UK-made CTO MAX carbon technology to strip out dirt, rust, microplastics, heavy metals, and over 130 chemicals—all complete with a premium faucet and automatic leak protection.

Blocks mud, rust & sand: high-capacity Polyspun pre-filter acts as a physical barrier against heavy sediment, silt, and algae.
Strips out 88.9% of fluoride & up to 99% chemicals: UK-made CTO Max ceramic & carbon block filter targets chlorine, chloramine, PFAS, microplastics, heavy metals, and bacteria.
Independently lab-certified: Tested to strict NSF/ANSI 53 & 42 standards for guaranteed contaminant reduction.
Automatic Leak Stopper & Filter Life Monitor included ($99 value): Built-in Leak Stopper and Filter Life Monitor give you total peace of mind under your sink.
Comes complete with a sleek Metro High Loop chrome faucet ($99 value)
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 with basic tools, or have a plumber do it for you.
Annual filter replacement cost: $137.
Free shipping

SKU: IT007203-SF Categories: Fluoride Water Filters, PFAS Water Filters, Under Sink Water Filters

Description

Specifications

Filter life 12 months
0.9 Micron absolute
Maximum flow rate: 2.5 litres per minute
Minimum pressure required: 30PSI
Warranty: 5 years (housing)

Temperature Range: 5°C – 38°C
Dimensions: 23(W) x 34 (H) x 13(D)
Metro Tap: 160mm (W) × 250mm (H)
Reach measured from the tap body centre to the spout centre
Watermark Certificate Number: 23124

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.

Everything You Want to Know

What's included in the system?

The system comes complete with the first set of filters, housing, hoses, screws, locking clips, faucet, leak stopper & filter life monitor, and all components required for installation (excluding tools).

How often do I need to change the cartridges and how much do they cost?

Polyspun Pre-Filter: Every 12 months depending on water quality ($18).
Coldstream CTO Max cartridge: Every 6 months ($120 – discounted twin set available).

Can I install this under sink filter myself?

Yes, you can install this undersink water purifier 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 system removes dirt, rust, sand, silt, and algae & over 130 chemicals and contaminants 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 are required — and a filter wrench is included to make the process even easier. It’s quick and straightforward.

Replacement Filter Cartridges for
CTO Max Twin Under Sink Water Filter with Sediment & Fluoride Shield

1st Stage Polyspun Pre Filter Replacement Cartridge

The system requires 1 of these cartridges to be replaced every 6 months or 1892 litres, dependent on water quality.

2nd Stage Coldstream CTO Max Replacement Cartridge

The system requires 1 of these cartridges to be replaced every 6 months or 10,000 litres, dependent on water quality.

1st Stage of Filtration: Polyspun Pre-Filter Cartridge

Safeguard your filtration system against the heavy particulate matter common in Western Australia, the Northern Territory, and South Australia. Our commercial-grade 1-Micron Polyspun Pre-Filter acts as a robust first line of defence, physically trapping mud, rust, sand, and algae before they reach your premium filters. By preventing premature clogging, this cartridge is the essential first stage of an effective water filter for sediment, ensuring crystal-clear flow and significantly extending the lifespan of your advanced CTO Max Fluoride cartridge for consistent protection.

2nd Stage of Filtration: Coldstream CTO Max - Made in UK

Remove Fluoride and Chlorine with only one cartridge! The KLT Coldstream CTO MAX water filter is an All-in-One filter removing over 130 Chemicals incl. Chlorine, Chloramine, and Fluoride, along with Bacteria, Virus, PFAS, Microplastics, Heavy Metals. Suitable for our Benchtop and Undersink water filter systems, it features a unique design that utilises a two-part construction: Outer ceramic layer with antimicrobial properties and Inner carbon core for chemical contaminant protection.

Tested and certified to NSF/ANSI 42 and NSF / ANSI 53 for Chemicals, PFAS, Microplastics.

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.

How We Got Here And Why It Matters

We’re a family business built on firsthand experience and a genuine commitment to better wellbeing through clean water. With over 40 years of combined expertise and nearly a decade in business, we’ve helped thousands of families choose the right water filter system. We offer clear, honest advice and products we truly stand behind—and use ourselves.

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.

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

3-Way Mixer Tap

Designated tap

Component Diagram

A – Polysun Pre-Filter
B – Coldstream 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

Installation Diagram

Installation & Maintenance Videos

Installation Guides

Data Sheets & Test Reports

Additional information

Weight	2 kg
Dimensions	33 × 32 × 13 cm

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