Sound-insulated shell set for installation on all TECEprofil dry-wall modules; suitable for preparing water and power connection for shower toilet seats e.g. Duravit SensoWash D-Code and SensoWash Starck, TOTO Washlet Giovannoni/GL 2.0/EK 2.0, AquaClean 4000/5000/5000plus, V & B ViClean U. Shell set consisting of: Hollow-wall box Retaining plate for hollow-wall box, for lateral assembly on the module frame Wall disk 1/2" x 1/2" incl. sound insulation Retaining plate for wall disk Seal sleeve Fixing screws