Shower system series hansgrohe croma select finishes white chrome operation single lever shower mixer anzahl der strahlarten 2 features ceramic cartridge temperature limiter anti calc system korrosionsschutz hansgrohe quickclean anti calc function installations wall installation on wall installation nominal connection width dn 15 diameter of connector 12 inch flow rate 16 lmin minimum flow pressure 15 bar maximum flow pressure 10 bar shower head diame