To those that answered above:
I described the fitting I am looking for:
3/4" female threads on one side and the other side to accept 1/2 ' push in Pex tubing.
I couldn't find it on line for either Home Depot or Lowes and I am an hour away from any of the stores.
I was hoping a plumber or some who knows or has used such a fitting would chime in.
The fitting that was there was a PCV one 3/4" female threaded reduced to 1/2" glued and it froze and broke, so I don't want to replace it with the same
I am familiar with and have used most of the fittings that go with PEX, but never this one.
I am not looking for suggestions. Just the fitting
Jack L