Shower mixer is constantly dripping

I have what to me looks like a Bristan Colonial single sequential thermostatic shower (photo attached) that will not shut off totally. Would GUM-SK1200-1 Seal kit fix the problem or would I need GUM-SK971006 Cartridge?
Asked 10 years ago by Anonymous
No pictures are attached.

Yes a seal kit should do the job.

Answered 10 years ago by Anonymous

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