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That's the one Roger, as you can see not really easy to source in uk
Thanks

If you're really stuck then fem-fems are available in stainless at BES
which would do the job when combined with a threaded nipple.

You may need to use a thread seal rather than the more usual bottom seal
and rubber washer at the shower head but a liquid based thread sealant
could make the build look presentable.

http://www.bes.co.uk/products/165a.asp item 14259 plus 14451 or 14462.
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fred
it's a ba-na-na . . . .