Grandera Single-lever basin mixer 1/2" M-Size single hole installation GROHE SilkMove 28 mm ceramic cartridge temperature limiter GROHE StarLight finish GROHE EcoJoy technology for less water and perfect flow GROHE FastFixation installation system GROHE AquaGuide adjustable mousseur 5.7 l/min pop-up waste set 1 1/4" flexible connection hoses min. recommended pressure 1.0 bar