The Stopper Stem, or tapered valve connector, is a plastic Luer-Lock connector with a tapered, ribbed tip. When inserted into a stopper hole, it allows a Luer-Lock connection to the stopper.
Educational use only: Vernier products are designed for educational use. They are not appropriate for industrial, medical, or commercial applications.
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** The IB Diploma Program is an official program of the International Baccalaureate Organization (IBO) which authorizes schools to offer it. The material available here has been developed independently of the IBO and is not endorsed by it.