Grohe Adagio Pneumatic Clear Toilet Cistern Flush Valve Bellow 43506000 macdee This dual flush push button

This dual flush push button from Ideal Standard is compatible with the SV83467 dual flush valve

It's designed and made in the UK and features a unique filter removal key

Geberit Type 212 flush valve

Flush Valve Thread Diameter: 1 1/2"

- Fast refill

Grohe Adagio Pneumatic Clear Toilet Cistern Flush Valve Bellow 43506000 macdee This dual flush push buttonIf your Grohe Adagio flush valve isn't flushing properly, it could very well be that not enough pressure is being generated to lift the flushing assembly of the valve. Quite often it can be this bellows washer, over time the washer may develop small fractures in it's surface as it's constantly expanding and contracting, therefore not keeping the air contained and not expanding enough to lift the flush valve assembly. You can test if it's the bellows