How to fix leaking shower wall top?

[alwin]

Hi everyone,

I bought a Mondella Resonance chrome pin lever wall top assembly with 1/4 turn ceramic disc valves installed in my shower (hot and cold wall taps) from Bunning 1 year ago.

The shower is leaking when turned off, and I believe the ceramic disc cartridges/spindles need replacing.

I would like to ask:

Can I replace just the internal shower tap cartridges, or

Are there any compatible wall top assemblies (same 1/2” BSP, 1/4 turn) from other brands that will fit without modifying the plumbing?

Any advice on compatible parts available at Bunnings would be greatly appreciated.

Thanks in advance!