On 2005-08-03, wrote:
external version is as it says - like a cup it fits outside the
porcelain spigot of the bog and has same 38mmhole for the pipe. I'd
buy both and see which fits best.

Thanks for all the replies. As it seems there are just internal and
external flavours I'll have a go with both. I'd call the loo
manufacturer but the pan's 21 years old and in a house I'm letting out
so I won't see it again until I go over to fix it!

Cheers,

Mark