WC concealed cistern adjustment ex factory 6 l and 3 l with small maintenance access pneumatic discharge valve offering 3 modes of operation: dual flush or start/stop or non-interruptible connection from left/right/back or top low noise (group I acc. to German Noise Specification) DIN approved insulated against condensation ½" water supply connection including integrated angle valve and push fit flexible hose union no tools required for the installation of the inspection shaft incl. protection during construction phase, for vertical or horizontal use flush pipe insulated against condensation GROHE EcoJoy®technology for less water and perfect flow fixing brackets without inlet connector 37 489 without wall plate/actuation without inlet connector 37 489 without wall plate/actuation without electronic actuation