This union connects 1/16” to 1/32” OD tubing, with zero-dead-volume fittings at each end. It has an internal bore size of 0.25 mm and is made of PEEK.
Bulkhead versions are designed to be mounted through an instrument panel or on a bracket. The panel hole diameter is 5/16” for this union, and the bulkhead nut is on the side with the internal fitting.
It comes with one 1/16” fingertight nut and one 1/32" fingertight nut that have male (external) threads.