A non-universal tub spout installation
I am replacing a shower spout in a shower ~30years old. The copper pipe protruding through the wall has a brass fitting which appears to be permanently attached to the copper pipe. I do not see any solder or thread between the two pieces. The brass piece has a few threads near the wall and the other end has an o-ring. I purchased a universal spout with various front and rear end mounts but none seem to work. The rear end fitting adapter is too narrow to slide over the entire brass fitting. The original spout has a thick plastic insert threaded near the wall and has a solid (non-thread) section near the mouth of the spout for the o-ring to seal. Any ideas on this type of fitting and where I might get a new spout that will fit? Maybe a new o-ring too. Thanks,