Ss-6-ut-6-4, Stainless Steel Ultra-torr Vacuum Fitting, Reducing Union, 3/8 X 1/4 In. Tube Od, Can Combination With Swagelok - Pneumatic Parts - AliExpress
Ultra-Torr Vacuum Fittings | Fittings | All Products | Swagelok
Stainless Steel Ultra-Torr Vacuum Fitting, Union Tee, 1/2 in. Tube OD | Unions | Ultra-Torr Vacuum Fittings | Fittings | All Products | Swagelok