Quote: (Originally Posted by
tibby)

Thanks John, pics would be greatly apreciated. I'm a bit surprised as Jerry at ISC told me it's a Swagelock part.
Tibby
I think the part is a Tomco product, not "Genuine Swagelok", however cannot confirm without seeing the old male QC4 part I removed which is at home in a spares box. There are slight design deviations which IMHO are operationally sounder and physically more durable on the Swagelok item. Explanation later.
Insturmentation Process Control Series.