Ace Glass 7648-09 19/22 Joint with Groove for O-Ring

Features:

• Inner member ground joint with groove for O-Ring.
• For use with outer members 7566, 7567, 7651, and 7652.
• Leak-proof at high vacuum (up to 1 x 10-8mm Hg.).
• O-Ring permits use without grease.
• Supplied with one FETFE O-Ring.