What year is it?
2001-2004:
https://www.showerdoc.com/mira-415-2001-2004-combiforce
Post 1991:
https://www.showerdoc.com/mira-415-415-b-post-1991-shower-spares
Post 1985:
https://www.showerdoc.com/mira-415-415-b-post-1985-shower-spares
There's also customers questions towards the end of each of those pages. You should be able to ask your own there if you need more advice
Fghu
July 2022
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