10 Pack - 20x150mm Pyrex Glass Test Tubes with Rubber Stoppers New
These disposable glass round bottom test tubes are made of 3.3 borosilicate glass to reduce pH changes and contaminants potentially leached from soda-lime glass. Rubber Stoppers included. Karter Scientific is a registered trademark in United States of America. To maintain quality control, authorized permission is required in the resale of our products.
