Parker VacuSeal 8-8 VHLZ-SSV, 1/2" Male 

VCR x 1/2" OD Compression SS-8-VCR-6-810 

Details : Parker Vacu-Seal Adapter Fittings

Mod: 8-8 VHLZ-SSV-PE, Mat:  316  Stainless Steel 

1/2" Face Seal x 1/2" OD Compression