UK trade guideToilet & Cistern 3 min readUpdated 11 July 2026

How to Replace a Grohe Nova Cosmopolitan Flush Plate (UK)

Swap a Grohe Nova Cosmopolitan concealed-cistern flush plate in a UK bathroom. Dual-flush levers, seals, adjustment.

Grohe

Identify

Confirm your Grohe frame series — Nova Cosmopolitan plates only fit specific in-wall carriers. Look on the inspection window for the frame's date-stamp and part number.

Remove the old plate

Pull the Grohe Nova Cosmopolitan plate away from the wall (magnetic or clip-on). Disconnect the two flush levers or pneumatic tubes from the top of the cistern.

Fit the new plate

Adjust the Grohe Nova Cosmopolitan lever rods to length. Reconnect, refit the plate. Test full and reduced flush volumes (6 L / 3 L standard UK).

Frequently asked questions

Will the Grohe Nova Cosmopolitan fit any concealed frame?
Only Grohe-brand frames. Cross-brand fitting rarely aligns.
Do I need to isolate water?
No — the plate is external; you only touch the flush actuators, not the fill valve.
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