Features of the Grohe Eurosmart Cosmopolitan (CA77B10660354D60B4D2F75FBFFE9D4A) 1/2" Single lever basin mixer size M: Single hole. Metal lever. GROHE SilkMove: 35 mm ceramic cartridge. Adjustable flow limiter. GROHE StarLight: bright, durable chrome. GROHE EcoJoy: economical aerator, 5.7 l/min. GROHE QuickFix quick installation. Smooth body. Flexible connection hose(s). No pull-out or waste