They are powerful and reliable. The Flowstar S by hansgrohe offers the siphon drain in the form of tube and bottle trap (also "cup trap"). Customers often choose design traps – streamlined products that fit well in modern bathroom ambience. They are complemented by inlet, drain and overflow fittings, reliable valves and accessories around your fittings. The Flowstar S is available in 8 different finishes to perfectly match your bathroom fixtures.