PerkinElmer 2.75" CF Rotary Vacuum Feedthrough Elastomer Seal 1/4" Shaft

Perkin Elmer Vacuum Rotary Elastomer 2.75 CF ConFlat Flange 1/4" Drive Shaft

Used, see photos. Conflat knife edge is in excellent condition. Rotates freely, but squeaks a little bit sometimes.

-BJ