Shower mixer with thermostat hansgrohe RainSelect 15380340 hidden installation, for 2 consumers polished black chrome

hansgrohe RainSelect 15380340 Thermostatic bath mixer for 2 consumers, exterior: Select on/off button for 2 consumers; stopper C.; delivery kit: thermostat, functional unit, installation instructions; not included: hidden part 15310180, purchase additionally. Depending on volume flow and installation conditions, 50% reduction in consumption and built-in shutdown function; simultaneous use of multiple outlets; maximum consumption at 3 bars: 19.6 l/min; thermostat cartridge, start / stop valve for control of functions; temperature limitation; return-valve; Type of connection: basic set; mine. working pressure: 1 bar; Maximum. working pressure: 10 bar. The thermostat comes with buttons: hand shower and PowderRain. colour black grinded chrome.