"Phisherman" wrote in message
...
I need to install a drop el (female thread). The drop el is brass and
has two ears with holes so it can be secured to a wooden brace. My
question is how far out should this el be located? Flush with the
finished wall? TIA

Buy your rough-in and finish fittings. They will have instructions on what
they need and how to fit them. Some require male threads, some female, some
flush, some set back, some a copper tube that the trim holds onto with a set
screw. There doesn't seem to be a standard. Check the manufacturer first.