Geberit Kappa 50 115.258.00.1 Stainless Steel Dual Flush Plate The flush plate is the only visible part of the Geberit Duofix frame once installed. with a variety of styles, finishes & colours the Geberit flush plate range can compliment any modern bathroom design. Choosing the right flush plate will depend on what frame you are going to use. If you are installing one of our low height frames (0.82cm or 0.98cm) featuring the UP200 cistern you can choose from the Kappa 20, Kappa 50 or Artline flush plates. Bolero, Tango, Samba, Rumba, Mambo & the recently launched Sigma flush plates are compatible with our full height frames (1.12m frames) featuring the tool-free UP320 cistern.