Grohe 42333000 4.5 Litre Flush Volume Adapter for GD2
The Grohe 42333000 adapter is used within GD2 concealed cisterns to set the flush volume to 4.5 litres. It modifies the internal flush mechanism to meet water efficiency requirements.
Function
The adapter limits the volume of water discharged during a full flush. Incorrect or missing adapters can result in excessive water usage.
Installation Notes
The adapter clips into the flush valve assembly inside the cistern. Always verify correct seating and test flush volume after installation.
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