Shower set series hansgrohe raindance select finishes white chrome features connection thread 12 airpower technology anti calc system shower fitting components hand shower head shower hose wall bracket korrosionsschutz hansgrohe quickclean anti calc function anzahl der strahlarten 3 water jet types rainair whirlair installations wall installation on wall installation diameter of connector 12 inch flow rate 16 lmin shower head diameter 120 mm shower ho