The Geberit Duofix UP320 concealed cistern system is an innovative solution for modern bathrooms. It was specially developed for drywall construction and is suitable for wall-hung WCs with connection dimensions in accordance with DIN EN 33:2011-11. This system allows flexible use as it is designed for single flush, dual flush and flush-stop flushes. An outstanding feature is the tool-free installation and maintenance, which ensures easy installation and maintenance. In addition, the system is equipped with an empty pipe that allows for easy water supply to Geberit AquaClean shower toilets. The external odour extraction system ensures a pleasant room climate and can be connected to the flushing elbow via a connection sleeve with a diameter of 50 mm. With a maximum water temperature of 25 degrees Celsius and a flow pressure of 10-1000 kPa, this product offers reliable and efficient performance. Tool-free installation and maintenance. Empty pipe for water supply to shower toilets. External odour extraction system can be connected. Flexible flush volume adjustment. Integrated angle valve with handwheel.