This is a new old stock Cajon Swagelok 321 Stainless Steel Flexible Tubing, ½” OD, 3” nominal produced flexible length. 

One end adapter is ½” OD stainless steel tubing and the other end adapter is 3/8” OD glass tubing.

The part number is G321-8-GX-3-B1.

The assembly is about 9” long.

Sold “as pictured/as seen”.       

See the photos and judge the condition for yourself.

Message me if you need additional information or photos.

This item comes from a smoke-free and pet-free home.