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Doulton DUO Undersink Water Filter System with Fluoride & Ultracarb

DoultonSKU: W9380040

Sale price£135.99

20% VAT included.

In stock


The Doulton DUO Undersink Filter System ensures high-quality drinking water in your home, with a two-stage filtration system reducing limescale and filtering pathogenic bacteria, chlorine, organics and heavy metals.

With quick and easy installation, a Doulton® home filter system uses the natural power of ceramics to effectively remove >99.99% of contaminants whilst retaining natural minerals. With a pore structure of less than 1 micron in size and 100 times smaller than a human hair, the ceramic filter traps and separates bacteria and particles from your normal tap water, leaving fresh, great tasting water.

Two-Stage Filtration:

Stage 1 - Fluoride

The Fluoride reduction cartridge reduces unwanted naturally occurring and added fluoride in the mains supplied drinking water.

Fluoride cartridge life – 3 months typical usage before cartridge replacement is required

Stage 2 - Ultracarb
Multistage filtration in one filter cartridge:
Stage I - Outer Shell-Micro Filtration
Stage II - Anti-Bacterial formula within the ceramic matrix inhibits microbial growth
Stage III - Activated carbon in the Ultracarb candle takes out chlorine and organics improving taste and odour
Stage IV - Ultracarb also contains heavy metal removal media, which takes out toxic lead Ultracarb filter candle life – 6 months* before replacement of the ceramic filter required. *Cartridge and filter candle life may vary depending upon your local water conditions.

Testing & Certification:

NSF and WRAS testing and certification - to standard NSF/ANSI 42 Drinking Water Treatment Units - Aesthetic Effects and NSF/ANSI 53 Drinking Water Treatment Units - Health Effects.

Full testing and certification information is available via the following link: Click here 

Manufacturer is audited by the British Standards Institute (BSI) and achieved BS EN ISO 9001 quality standards

Doulton Filter Performance Table


For all orders over £30 we offer free express delivery.

For orders under £30 we charge a small delivery fee of £1.95.

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2-3 business days


Standard (orders below £30)

2-3 business days


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1 business day


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