This is new in the box. I have opened the box for photographing. 

The LOCTITE Precision Air Regulator/Gauge/Valve with Syringe Air Line Adapter is designed for the LOCTITE Micro Needle Valve (item 534301), providing 0-30 psi.

These are $373.32 on Henkels Loctite website. This is your chance to get one at a discounted price.