GROHE FLUSHING CISTERN FOR WC 80 MMKEY FEATURES pneumatic discharge valve offering 3 modes of operation: dual flush or start stop or single flush water supply connection from top low noise (group I acc. to German Noise Specification) with push fit flexible hose union angle valve 15 mm (") Shortable inspection shaft incl. protection during construction phase, for vertical use fixing brackets without wall plate actuation GROHE Water Saving Less water, perfect flow for mounting of small