Ace Glass 7648-09 19/22 Inner Joint with O‑Ring Seal

Standard taper 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