Ya know this board is a two way street. When I or someone else suggests you post a photo and or post a brand name/ model of whatever it is that you are trying to work with, WHAT THAT MEANS IS you have a job to do. I could sit here and guess all night long. **** for all I know it might be METRIC. No, German, U.S. and Japanese pipe fittings are NOT the same.
In this day and age, it could be any of those + something proprietary
