1 Black Union 1-1/2" 310 U-1 Connector Fitting 150 SPF
Has some lettering I cannot make out, hopefully if you know what you're looking for, you can tell from the photos. Anything I can do to help, more pics, or whatever, just let me know. Is stamped China and 150 for sure. I think after the 150 are the letters SPF but not totally sure about that.