Shower system series hansgrohe raindance select finish chrome anzahl der strahlarten 3 water jet types rainair features anti calc system airpower technology korrosionsschutz hansgrohe quickclean anti calc function installations wall installation on wall installation nominal connection width dn 15 diameter of connector 12 inch flow rate 19 lmin minimum flow pressure 2 bar maximum flow pressure 10 bar shower head diameter 300 mm lnge brausearm 38 cm