The Sigma 40 black glass and aluminum push buttons is suitable for the Duofresh system.
The Duofresh toilet system extracts odours from the toilet bowl and passes them through a carbon filter placed in the flush plate.
This cistern requires an electrical connection for the special filter function and transformer.
The filter is turned on on the flush plate and turns off automatically after 10 minutes.
Geberit offers a 10 year service guarantee on all products as well as 25 years availability on spare parts.