These Büchner filter flasks have a short glass side-arm with a screwthread for the connection of a PTFE detachable screwthread connector. The PTFE connector allows the safe and easy connection of vacuum tubing to the flask.

• Complies with ISO 6556 and DIN 12476
• Büchner flasks with heavy wall construction for vacuum filtration applications
• Side-arm features a PTFE screwthread connector for easy and safe fitting of 9mm bore vacuum tubing
• With tooled neck to accept a drilled rubber stopper