The message om
from "Dave Jennings" contains these words:

Hope someone can help. We have a Trevi Blend shower valve with a Trevi
shower head attached ( external hose and mount). Being the clumsy twonk
I am, I've dropped the shower head and it's cracked, and spraying water
from the case rather than the nozzles!! I'm looking to replace this but
the Trevi replacement is £100, which seems steep. Are all shower
hoses/heads a common size, and if so am I able to buy some compatible
unit instead of Trevi branded?

You might find it cheaper at The Shower Doctor. I no longer have the
address but Google should turn it up. You might even get advice on a
cheaper alternative.

--
Roger Chapman