This is a wire-operated dual flush valve from Ideal Standard, replacement for models SV94167, SV92467, SV92667, and SV92867. It is designed to fit flush valves with a 13mm diameter spigot push button connection. The dual flush function helps conserve water by offering different flush volumes for solid and liquid waste, ensuring efficiency without sacrificing performance. The push button hole diameter in the connection box is 12.5mm. The compatible push button is EEM82335167.