The thread is most likely a 1/8 pipe thread(tapered), so don’t try to put something other than a pipe plug in there. The brass screen was soldered into the end of that fitting, so you could heat it to remove or drill out. You can get the screen to replace it from McMaster Carr or others. It is 100 mesh screen, and you can fabricate your own filter.
David Bartlett
Pine Tree Boating Club Chapter
"I don't fully understand everything I know!"
