Doulton BIOTECT ULTRA SI filter

Swiss Aqua Filter - ecological water filtration solutions in Switzerland
Swiss Aqua Filter - ecological water filtration solutions in Switzerland
Swiss Aqua Filter - ecological water filtration solutions in Switzerland

Doulton BIOTECT ULTRA SI filter


New BioTect Ultra SI anti-limescale filter from Doulton forunder-sink and over-sink water purifiers from the BioTect range.

The SI version adds a scale inhibitor to Doulton's Biotect Ultra: the new benchmark in filtration, reducing by more than 99% pollutants and contaminants present in network water: PFAS, bacteria, chlorine, viruses, residues of medications, lead, heavy metals, chemicals, insecticides, herbicides, bad odors and taste of tap water.

Water filtered with Biotect Ultra SI retains its minerality.

Made in England, in a socially and eco-responsible company, EPA-certified.

LUCIDEON and WQA certified.

Reference W9123051
in stock
Associated products

Our privacy policy

Our Privacy Policy explains our principles when it comes to the collection, processing, and storage of your information. This policy specifically explains how we employ cookies, as well as the options you have to control them.

  • 1 What are cookies?

    Cookies are small pieces of data, stored in text files that are stored on your computer or other device when websites are loaded in a browser. They are widely used to "remember" you and your preferences, either for a single visit or for multiple repeat visits

  • 2 How we use cookies

    We use cookies for a number of different purposes. Some cookies are necessary for technical reasons; some enable a personalized experience for both visitors and registered users; and some allow the display of advertising from selected third party networks.

  • 3 Controlling Cookies

    Visitors may wish to restrict the use of cookies or completely prevent them from being set. If you disable cookies, please be aware that some of the features of our service may not function correctly

  • 4 Information We Collect

    We only collect information about you if we have a reason to do so-for example, to provide our services, to communicate with you, or to make our services better.

We are committed to maintaining the trust and confidence of our website visitors. We do not collect, sell, rent or trade email lists or any data with other companies and businesses. Have a look at our Privacy Policy page to read detail information on when and why we collect your personal information, how we use it, the limited conditions under which we may disclose it to others and how we keep it secure.

We may change Cookies and Privacy policy from time to time. This policy is effective from 24th May 2018.

The new BioTect Ultra SI filter works in all Doulton BioTect over-sink and under-sink systems. It offers you, for 6 months, up to 2,300 liters of drinking or cooking water that is perfectly healthy for the body: free of more than 99% of its pollutants and contaminants, as well as tartar.

WQA certified, LUCIDEON

Dimensions: 270 x 45 mm

The BioTect Ultra ceramic-carbon filter is the result of two centuries of research and innovation in the field of fine filtration, by the inventor of gravitational filtration: Doulton .

Biotect Ultra SI filter => 5 levels of water purification:

  1. Exterior of ceramic
  2. Interior of ceramic
  3. Anti-heavy metal media
  4. Tartar inhibitor
  5. Compacted activated carbon


  • Perfluorinated compounds (PFAS): eternal pollutants
  • Bacteria and cysts
  • Chlorine and chlorinated derivatives
  • Heavy metals (lead and aluminum, etc.)
  • Drug and hormone residues
  • Chemical products (pesticides, insecticides, herbicides, etc.)
  • Tartar
  • Neutralizes bad odors and bad taste of water

Data sheet

Water supply
under pressure
Maximum flow in use
180 L/h (for an average pressure of 3 bars)
Filter life
6 months / 2300 liters (whichever comes first)
Compatible systems
HCP BioTect
HCS BioTect
HIS BioTect
QT BioTect
Clean the outside of the filter with the abrasive surface of a sponge, under cold water: before the first use, then approximately once a month.
First use of the filter: Run cold water for 10 minutes through the system, then wait 24 hours and run the water again for 10 minutes.
Max pressure in Bars
8.63 bar
Without Bisphenol A
Filtration threshold
0.2 microns
Max temperature filtered water
Made in England in an EPA certified company
Compacted coal
Filtration of pollutants and contaminants


Performances BioTect (FR)

Tableau des filtrations avec BioTect Ultra et BioTect Ultra SI (en français)

Download (319.67KB)