Dual button flush replacement valve

[Richard_Barnes]

OK thanks for your help. I did think it was unlikely I could just find a spare valve that would fit in but it was worth a shot

 

[CBW]

There’s writing on the cistern lid, probable branding, what does it say?

 

[Richard_Barnes]

Ha ha I've had the lid off for days now and never even noticed that writing on it until now. It says Impulse. A quick Google search there brings up some Geberit flush valves that look similar to mine. Hard to tell if they're a direct replacement though and would fit. I'll email Geberit and see if they can help