Mix brands dome to starkey

Is it possible to put a different brand dome onto Starkey Livio 2400 aid ?
Reason being I like the Specsavers dome compared to the Starkey. My old dome is 9mm top part and 11 mm bottom part which really suits me.
Also I have what I think is called Tulip dome on now which i need to change. The trouble is the size offered is either 9mm or 11mm which I’m confused as which ones to order ? There are no local branches available where I live, so postal is the only option.
Thanks all

Most receivers (speakers) are pretty much the same where you put on the domes. You’d have to try. I have tried many brands of domes successfully, though I don’t have Starkey aids.

Thank you , i will give it a go :))

I’m using Starkey domes with Oticon HAs

Thanks Chirp will take a look at those.