CWT Product Excellence

Quality Made in Germany As a customer you should have the right to choose the best products available on the market. For most people, the label Made in Germany is a symbol of the highest quality standards in testing and reliability.


German-trained specialists doing the job
CWT is an owner-run family business in its third generation. The company’s history dates back to 1948 when Hans Otto Christiani started a water pump company in Cologne. In 1977 Rolf Christiani specialized exclusively in scale and rust protection and since then has accumulated over 30 years of expertise – not many in the world can match that. Two of his children have chosen to follow the path of tradition and joined forces in their mission to produce the best water treatment systems possible.


Utilizing only the best material complying with German quality standards
At CWT we know that our products can only perform as well as the basic components they have been built with. Therefore, we only allow the best materials to go into production. From the smallest electrical component to the circuit board, castings, connection parts, specially designed impulse bands, custom made plugs, and packaging details. We only source materials that comply with strict German quality standards to produce excellent quality products.


Production in Germany - trusting our partners
When producing a complex unit such as a technical electronic device, it is crucial to know who you are working with. CWT products have always been made in Germany. We have known all our partners for years – sometimes decades. Controlling the quality outcome in such specialized processes makes it inevitable to always be on the mark – that´s our guarantee. Therefore, we produce everything “here” – in Germany.


Research & development - German technology innovation
Germany is often referred to as the country of inventors, famous for its scientists, productivity and effectiveness. We strongly believe that constant research, scientific eagerness and precise monitoring of our products’ performance is the key to excellence. The science of eco-friendly scale-protection is a relatively young field and CWT has shaped its development right from the start.


Professional German scientists, consultation and services
It is not only important that our products are of high-class quality, it is also important to implement and install them correctly. CWT consultants are excellently trained to design the best solution for your situation. Above all, we are proud to provide German service standards -efficient, fast and on time.


German quality certifications
CWT meets the high standards demanded for Made in Germany production. We ensure this by extensive checks in our own Quality Lab covering numerous quality controls and precise documentation. This leads to the certified approval by the German TÜV, German CE, the EMC, and the German Certificate of Origin. In addition, sustainable production and environmental awareness are part of our practice.


Download: Quality Made in Germany

Factory Tour

Specialized production of circuit boards

Hand-made circuit board production

Circuit board assembly line

Connecting the displays and first quality check of impulse output

Pre-trimming the acrylic casts

Polishing and quality check of acrylic finish

Box assembly and final content check


"Water in itself is an exciting and inspiring topic to work with. For us, producing water treatment systems that further enhance the greatness of water is a dream profession. We simply love what we do."