Sigma50 flush buttons are available in a wide range of different high-quality materials and colours, and even in customised designs. The frameless design with slightly curved buttons is elegant and timelessly beautiful. Water-saving dual flush actuation. Surfaces made of glass, stone, plastic or metal. Base unit made of durable die-cast zinc. Frameless design. Optional insert for in-cistern sticks. Suitable for optional Geberit DuoFresh module. Selected colour options with surface coating (easy-to-clean).