Picking a concealed cistern is an important task. Hidden behind the wall, this is definitely not an element something you want to be fixing again. This is where the quality or this Geberit Sigma cistern comes into its own. From its high-quality plastic construction stopping and rust or durability.
There are two models to choose from with either a 8 or a 12cm cistern. Having the different sizes available gives you a little more options when it comes to adding a cistern within a wall with less depth.