• Doulton Twin Under Sink Water Filter with fluoride removal

Doulton Twin Under Sink Water Filter with Fluoride Removal

The Doulton Twin under sink water filter provides a high-quality, affordable option for water filtration for both the home and office. This under counter water filter system is designed excellent water purification, convenient installation and use.

The first stage is fluoride water filtration that selectively adsorb fluoride ions, helping reduce concerning levels of fluoride often present in town and city water supplies.

The second stage of filtration is a 0.5 micron Ultracarb® carbon block filter that polishes the water by removing organic chemicals, chlorine taste and odor, particulates, and microorganisms.

With its simplified dual-filter process, the our Doulton® Twin Undersink filter with fluoride removal delivers cost-effective and highly effective filtration in a discreet, space-saving setup.

  • Dual stage filtration process combines fluoride removal followed by organic chemical and particulate reduction.
  • Compact housing fits discreetly under the sink, keeping counters clutter-free.
  • System connects to a separate chrome faucet installed beside your existing sink fixture for easy filtered water access.
  • Filter output 5,000 litres
  • Maximum flow rate: 3 litres per minute
  • Micron Rating: 0.2 micron nominal
  • We recommend that the filter cartridge be replaced every 6-12 months depending on water quality and usage.

The Doulton Ultracarb® water filter’s versatile design allows it to improve water quality from various sources:

  • Rainwater tanks
  • Rivers or lakes
  • Well or bore water
  • Municipal tap water

Choose the tap for your under sink water filter

Spring Loaded Black Lever $0.00 Mode with high Loop $0.00 Retro with High Loop $0.00 Euro with High Loop $0.00 Euro with Long Reach $0.00 Metro with High Loop $0.00 Antique with High Loop $0.00 Fin with Long Reach $0.00

$485.00 inc. GST

SKU: IT4186 Category:


1st Stage of Filtration: Fluoride Reduction

The first filtration stage in the Doulton under sink system uses a specialised fluoride removal cartridge containing a high-purity aluminum oxide media.

This adsorbent filter media is made from the same crystalline mineral corundum that rubies and sapphires consist of. Through a selective adsorption process, fluoride ions chemically bond to the media’s oxidized surface sites as water passes through.

With an extremely porous structure, the media provides an abundant 200 square meters of adsorption surface area per gram. This maximizes contact between the passing water and the media, allowing for thorough fluoride removal.

The high-purity corundum media, with its vast adsorptive surface area and selective binding affinity for fluoride, enables robust stage one fluoride reduction within the Doulton system.

2nd Stage of Filtration: Doulton Ultracarb

The second filtration stage in the Doulton undersink system utilizes the Ultracarb® cartridge, which combines mechanical and adsorptive filtration:

Outer Ceramic Shell:

  • Manufactured from Doulton’s Sterasyl® ceramic with submicron pores that mechanically filter out particulates, bacteria, cysts, and turbidity.
  • Incorporates trace silver for bacteriostatic properties to inhibit microbial growth.

Inner Carbon Block Core:

  • Made from dense, extruded NSF-tested coconut shell carbon that adsorbs chlorine, chloramines, tastes/odors, chemicals, pesticides, and heavy metals.
  • Achieves NSF certification for reduction of chlorine/taste/odor and emerging contaminants.

The dual-action mechanical and adsorptive filtration of the Ultracarb® cartridge provides robust stage two polishing to produce clean, great-tasting water.

Doulton Twin Under Sink Water Filter Ultracarb with fluoride removal component diagram

Doulton Twin Under Sink Water Filter with Fluoride Removal Components

  • A – Fluoride filter cartridge
  • B – Doulton Ultracarb Filter 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

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.

WaterMark Certification
NSF Certification

Additional information

Weight2 kg
Dimensions330 × 320 × 130 cm


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