Concetto Single-lever basin mixer 1/2" for open water heater single hole installation metal lever GROHE SilkMove� 35mm ceramic cartridge GROHE StarLight® chrome finish adjustable flow rate limiter flow straightener pop-up waste set 1 1/4" flexible connection hoses GROHE QuickFix®installation system with centering support optional temperature limiter ref. no. 46 375 000 acoustic group I in accordance with DIN 4109