Kontes® PTFE Reusable Glass Joint Sleeves for Greaseless Connections

These ground joint sleeve for greaseless connections has a wall weight of 0.005-inch which is heavier than normal to eliminate wrinkling and creasing. Precisely fabricated from pure extruded polytetrafluoroethylene (PTFE) of the highest density for better vacuum and elasticity. Original sleeve shape is retained even after repeated use.

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