12 mm & 13 mm Test Tubes

Caplugs® Evergreen 12 mm and 13 mm Test Tubes are often used in the high-volume clinical chemistry analyzers. Our 13 mm Test Tube with Screw Cap can even be used with Beckman* and Tecan* analyzers.

  • Available in different colors for color-coding
  • Standard test tubes and test tubes with screw caps versions available
  • Polystyrene Tubes:
    • Withstand up to 8,200 x g
    • Provide better tube clarity
    • Appropriate for use with mild acidic (except oxidizing acids) or alkali solutions, alcohols (except higher alcohols) and salt
  • Polypropylene Tubes:
    • Withstand up to 10,000 x g
    • Provide more chemical resistance
    • Appropriate for use with organic solvents and stronger acids (except oxidizing acids), alkalis, alcohols, chlorinated and aromatic hydrocarbons (except xylene) and ketones
  • Standard Sample Cups, Piggyback Tubes, False-Bottom Tubes and more autoanalyzer consumables are also available


Made in the U.S.