Swagelok SS-1610-61 Stainless bulk head 1″ tube with SS-1210-R-16 adapter
Here is a Swagelok Stainless bulk head union, 1" tube x 1" tube, p/n SS-1610-61. Includes a Swagelok reducing adapter 3/4" tube x 1", p/n SS-1210-R-16. They are both used. The other end of bulkhead does have the front and back ferrules.

