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 tr...

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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.

  • Test Tube Length: 150mm (6 inches)
  • Test Tube Diameter: 20mm (0.78 inches)
  • Volume: 36ml or 1.27 fluid ounces
  • 3.3 Borosilicate
  • Rubber Stoppers: #2

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