Geberit’s Sigma70 dual-flush actuators feature smooth, seamless surfaces and rimless design. To add or change the actuator cover, affix a rigid backer or material to the mounting bracket, tape, and compress. They are available in easily cleaned stainless-steel and glass finishes. The pneumatic actuator with light-touch operation is supported by a servo lifter that acts like a rocker switch — touch on the left side to flush solids and on the right to flush liquids. The corresponding system is available for 2-by-4-inch and 2-by-6-inch installations.