10143974 DURAN GL 45 Blue Laboratory Bottle With Screw Cap and Pouring Ring 500 mL


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  • Product overview

Since its introduction in 1972, DURAN® Original GL laboratory bottles have grown to be the industry benchmark for multipurpose laboratory bottles. The bottles are made of high-purity, transparent, USP/EP Type I borosilicate glass 3.3, which is recognized for its great resistance to chemical assault and outstanding thermal performance. Long operating life is provided by the use of high-performance materials and a sturdy ISO 4796-1 design. The bottles have a permanent white enamel marking area and an easy-to-read graduated volume scale. For manufacturing lot traceability, each bottle has a permanent retrace code. For use up to 140 °C, DURAN® Original GL bottles come complete with the recognizable blue polypropylene cap and drip-free pouring ring. At 121 or 134 °C, all components can be thoroughly autoclaved.

  • Conforms with ISO 4796-1:2016 Laboratory Glassware — Bottles — Part 1: Screw-neck bottles requirements.

  • Made from borosilicate glass 3.3 DURAN®. According to USP 660, EP (3.2.1), and JP 7.01, DURAN® is a neutral glass that is categorized as a Glass Type I and complies with ASTM E438, Type I, Class A criteria.

  • For a particularly tight seal and quick, clean pouring out, a standardized GL-thread and matching cap system is used.

  • Retrace Code and manufacturing lot traceability certificate.

  • Fired-on, extremely long-lasting white print.

  • Can be kept for a long time.

  • Graduation grades on an easy-to-read scale to indicate the content.

  • Specifications

Height (mm)


Diameter (mm)


Capacity (mL)



GL 45

Marking area

In laboratory glassware, there is a printed ceramic marking area for marking or identification with a wax pencil. Also known as a marking square, white marking patch, or a marking field.


PP, BORO 3.3

BORO 3.3

A high maximum use temperature, virtually inert behavior, great light transparency, and little thermal expansion are all characteristics of borosilicate glass 3.3. The linear coefficient of expansion of borosilicate glass 3.3 is 3.3 x 10−6 K−1.



Retrace code

This is a lot number that was printed on the item during production and is used to identify the production unit, the production work order, and to track the materials that were used.