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Made of PTFE. Passage with O-ring made of FKM for secure attachment of commercially available... more
Made of PTFE. Passage with O-ring made of FKM for secure attachment of commercially available filter nozzles made of glass or plastic to vessels and round-bottom flasks with ground joint. Lateral stepped olive made of PTFE for connection to a vacuum pump using suitable tubing.
For vacuum filtration, the O-ring on the passage seals the connection to the filter chute so that even a slight vacuum is sufficient.
Related links to "Vacuum Adapter with ground joint, NS 29/32, PTFE"