Geberit concealed cisterns are essential in the modern bathroom in Tunisia and have been implemented several million times over the last 50 years around the world. They are known for their long-standing reliability. A leak test is carried out on each tank before delivery. Obtaining spare parts is guaranteed for 25 years. With the Geberit concealed cistern, it is possible to limit the flush volume to 4.5 litres. It is thus exemplary in terms of water consumption and has been awarded the best marks by the WELL label.