Global presence

Düring AG products are sold worldwide by carefully selected distribution partners. The durgol brand is the leader in the decalcifier market in Switzerland and Austria, and is well on its way to becoming the leading brand in several other countries. Germany, Austria, the USA, Israel and Benelux are currently the most important export countries.

International experience

TOILET DUCK - now belonging to SC Johnson - was invented 30 years ago by Walter Düring. Over the years this brand has been guided internationally with great success and brought to market leadership in a number of countries.

What makes Switzerland so special for us?

There are good reasons for Düring AG's choice of Switzerland as its home base:
  1. The water in many places in Switzerland is extremely hard: as a consequence of Switzerland's specific geological configuration, some three-quarters of all Swiss households have hard to very hard tap water.

  2. Switzerland has always been a preferential location for technology and pharmaceutical companies – industries that develop highly specialised products and are hence required to maintain consistently high quality standards.

  3. Switzerland is an international centre of the coffee trade and the nation takes its time-honoured coffee culture very seriously. Moreover, the first fully automatic coffee machines were invented and built in Switzerland. It is therefore not surprising that the company has always devoted a great deal of time and effort to creating quality decalcifiers for all types of quality household appliances.


  • If you are an interested consumer and would like to try out our products, please contact us and we will let you know where you can buy them.
  • If you are a distributor who is interested in selling our products in your country, please contact us by e‑mail at or by telephone on +41 44 847 27 47.