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Twin Undersink Water Filter Fluoride removal and CTO Max with AlkaHydrate
  • Twin Undersink Water Filter Fluoride removal and CTO Max with AlkaHydrate

Twin Water Filter Fluoride Removal Replacement Filter Set with AlkaHydrate

Original price was: $214.00.Current price is: $198.00. inc. GST

Replacement filters only.  Does not include the filter housing or any plumbing connections.

For most homes, the standard annual replacement includes:

  • 1x Omnipure Fluoride Removal Cartridge (Pre-flushed)
  • 1x CTO Max cartridge

Depending on your replacement schedule, it may also be time to replace:

  • AlkaHydrate Remineraliser Cartridge (every 2 years)

This set is ideal for our CTO Max Twin Under Sink Water Filter with Fluoride Removal and Alkaliser.

Looking for a complete system? Browse our full range of Undersink Water Filter Systems here.

Omnipure Fluoride Filter XF834-934-II

Omnipure Fluoride Removal Cartridge XF834/XF934, 5 Micron, 2.5"

Fluoride filter cartridge suitable for undersink water filters and benchtop water filters.

The solution for clean, safe drinking water, designed to effectively eliminate more than 90% of fluoride from your water supply.

  • Filtration Purpose: Removes fluoride
  • Micron Rating: 5 Micron
  • Service Life: 1,892 Litres (6 – 12 Months depending on daily water usage)
  • Dimensions: 2.5″ x 9″ (XF834) or 2.5″ x 10″ (XF934)
  • Operating Specifications: 10 LPM Max Flow Rate / Tested and Certified to NSF/ANSI 42
  • Origin: Designed and Made in the USA by Omnipure (10 Inch Part Numbers XF934, FL051, As001A10)

 

Installation and Replacement

Please Note: when changing the fluoride cartridge it is important that the fluoride cartridge is flushed alone to prevent it from flushing into the next stages of filtration.  Flush water through this cartridge in the system for 20 minutes before adding the next stages. View Instructions below.

 

CTO Max Replacement Cartridge-Box

Coldstream CTO MAX Ceramic Replacement Cartridge

The ultimate all-in-one filtration powerhouse designed to replace older setups (like the discontinued Doulton filters) with an upgraded, modern design. This premium cartridge features a dual-stage setup: an antimicrobial outer ceramic shell that blocks bacteria and microplastics, paired with a high-grade inner carbon core that traps chemical impurities. It is fully compatible with benchtop and undersink water filter systems.

  • Primary Filter Media: Dual-Stage Antimicrobial Ceramic Outer Shell + High-Density Inner Carbon Core
  • Filtration Purpose: Comprehensive purification removing Fluoride, Chlorine/Chloramines, PFAS (forever chemicals), Glyphosate, agricultural pesticides, microplastics, heavy metals (Lead, Arsenic, Chromium), bacteria, and viruses. It targets over 130+ documented contaminants.
  • Micron Rating: 0.9 Micron Absolute (Equivalent to a 0.2 Micron Nominal rating for ultra-fine particle retention)
  • EPA & NSF Approved (Tested against NSF/ANSI Standards 42, 53, and P231 for heavy metals, PFAS, and microbiological safety)
  • Service Life: Massive 10,000 Litre capacity or 6 – 12 Months (Usage dependent)
  • Dimensions: 2.5″ x 9″ or 2.5″ x 10″
  • Operating Specifications: max flow rate 3 litres per minute (LPM)
  • Operating pressure: 10 – 125 psi
  • Operating temperature 5°C – 70°C /
  • Origin: Made in the UK by KLT Filtration Ltd

Order two or more cartridges and receive an 8.75% discount.

CTO Max removes

 

Add Remineraliser ($89 value)
None AlkaHydrate Remineraliser +$84.50
SKU: TWIN-FILTER-SET-A Category:

Description

How to Install the Replacement Filter Set

Setting up your system is straightforward. The fluoride cartridge is pre-flushed for easy installation.  

  1. Open the housing:

 Turn the housing clockwise.

2. Install the cartridges

Place the fluoride cartridge into the 1st stage and the CTO Max in the 2nd stage. Gently slide the cartridge into the housing, with the flat rubber washer facing up. Screw the housing back on and hand-tighten until securely sealed. No tools are needed.

3. Install the AlkaHydrate cartridge 
Push down the collet while gently pulling the hose out to disconnect it. Remove the old cartridge and click the new cartridge into the holder, making sure it is facing the correct direction as marked IN and OUT. Push the hoses firmly back into the connectors until they are securely in place.

4. Check for leaks
Turn on the water supply and check around the housing for any leaks.

5. Flush the complete system
Turn the water supply back on and check for leaks. Then allow the complete system to flush for 10 minutes.

6. One final flush
After leaving the system for 12 hours, flush it again for 3 minutes.

That’s it. Your filter is now ready to provide clean, great-tasting filtered water.

Additional information

Weight1.2 kg
Dimensions28 × 20 × 10 cm

Omnipure Fluoride Removal Cartridge XF834/XF934, 5 Micron, 2.5"

Size

9 Inch XF834, 10 Inch XF934

Coldstream CTO MAX Ceramic Replacement Cartridge

Size

9 Inch, 10 Inch

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