I have a Cadlights 50g that has been sitting empty for a few years and I finally want to start it up. The holes drilled on this seems to be metric at 22mm for the two smalls holes and 42mm for the middle large hole. I can seem to find any plumbing that can be close to this in either metric or imperial. I had another one of these tanks that had all the plumbing included and I sold that one a few years ago. Now trying to get back into it again.
Any suggestions would be greatly welcome!

Any suggestions would be greatly welcome!
