Geberit Duofix PE-X Sigma Cistern 12cm (Sweden) in PreWall Geberit Duofix PE-X Sigma Cistern 12cm (Schweden) in einer Vorwandinstallation Demonstrates .brDrywall installation Trockenwandinstallation Geberit Duofix UP320 ID 1897119 Please note: Videos do not replace installation manuals. For installation .brbrDemonstrates the installation of the Geberit Duofix Sigma (UP320) concealed cistern in a typical Plattenbau building. Only available in Russia. ID: 2031272 .brGeberit Duofix element for wall-hung WC, H112, with Sigma cistern 8 cm (UP720) Demonstrates the fast and easy installation of the Duofix Special WC element .