PrimusCenter unites all the functions of a conventional drinking water point-of-entry in a very small space. The pressure-reducing valve lowers the pre-pressure to a steady level in order to protect the system and to achieve an economical use of water. During drinking water distribution, the water filter prevents the entry of dirt particles into the system, thus protecting valves, machines, continuous-flow water heaters, etc., from malfunctions caused by dirt. Furthermore, the domestic water center can be modularly extended and, thanks to its adjustable mounting system, it can be installed quickly with only three screws. With its clear form and discreet colour scheme, the unit also blends in perfectly with the design of modern technical, cellar or utility spaces.