Geberit Sigma8
The Geberit Sigma8 Concealed Cistern is designed for use with a floor mounted back to wall pan and fits within a standard 90mm wall cavity. The cistern is designed in Switzerland and made in Germany from a single piece of blow moulded HDPE making it permanently leak proof. Geberit In-wall Cisterns can be used with Greywater / Rainwater when the water is within pH value of 6.0-9.5 and filter system is used.