Adapter features a spherical ball joint, precision ground, with a groove for an o-ring.

• Leak-proof at high vacuums when clamped
• O-ring permits use without grease
• One FETFE o-ring included

For use with matching socket members. Adapter is leak-proof at high vacuums when clamped. O-Ring permits use without grease. Supplied with one FETFE O-Ring.