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DURAN® is the leading premium brand for laboratory glassware made from borosilicate glass 3.3 – engineered in Germany. It combines over 120 years of manufacturing expertise with excellent product quality and the passion to innovate. The DURAN® portfolio comprises over 3,000 products, mainly manufactured to DIN/ISO standards.

DURAN® borosilicate 3.3 glass is notable for its highly consistent, reproducible quality. Very high chemical resistance, inert behavior, transparency, a high usage temperature, minimal thermal expansion and the resulting high resistance to thermal shock are the most significant properties of DURAN® borosilicate 3.3 glass. It also conforms to the requirements of a USP/EP/JP Type 1 neutral glass suitable for use by the pharmaceutical industry.

DURAN® Lab Bottles
  • For preparing, storing, and sterilizing liquids and powders.
  • Available in clear and amber glass for light-sensitive samples and as narrow and wide mouth options.
  • A variety of matching caps, closures and accessories available
  • Part of the DURAN® Bottle System.
DURAN® Caps and Closures
  • Precision closures for bottles in a variety of sizes and materials.
  • High-performance screw caps for demanding applications.
  • An innovative range of tubing connection systems for safe and easy liquid transfers.
  • Part of the DURAN® Bottle System.
DURAN® Beakers & Flasks
  • For everyday lab applications e.g. mixing, storage and heating.
  • Uniform wall thickness resulting in greater thermal shock resistance.
  • DURAN® Super Duty range provides higher mechanical strength due to reinforced rim.
DURAN® Chemistry Glassware
  • Essential glassware and accessories for daily work in chemical, analytical and biological laboratories.
  • Manufactured mainly from Type I / DURAN® Borosilicate glass 3.3 for excellent chemical and thermal resistance.
  • Broad portfolio of laboratory glassware components and blanks (see Glass Blowing Supplies).
DURAN® Volumetrics
  • Volumetric flasks, measuring and mixing cylinders, burets and pipettes all manufactured according to ISO standards
  • Calibrated to meet either class A/AS or class B requirements
  • Comprehensive certification available (Individual, batch USP, ISO 17025- UKAS, Conformity mark DE-M)
  • Complemented by ergonomically shaped, color-coded PE stoppers.
  • A range of high-quality bottles and closures developed for the needs of the pharmaceutical industry.
  • With complete quality documentation according to Pharma requirements
  • Manufactured from EP/USP Type I borosilicate glass in clear and amber

Starting with the ORIGINAL GL45 bottle in 1972, the DURAN® laboratory bottles have continued to evolve to meet the diverse needs and applications of scientists and researchers around the world. The high-purity and virtually inert Type I / borosilicate glass 3.3 bottles are available in the most comprehensive range of volumes and formats. A variety of dedicated caps, closures, and accessories working perfectly with the DURAN® laboratory bottles complement the portfolio. All part of the DURAN® Bottle System – developed for your needs. DURAN® bottles come with a manufacturing lot/retrace code. Using the eight-digit code and the corresponding article number, a batch certificate can be downloaded.

DURAN® offers a comprehensive product range of precision closure systems, starting with high-quality standard caps suitable for numerous scientific applications. Our product offer also includes identification aids, special closures for sterilization processes, caps made of high-performance materials for demanding applications, connection systems, security caps, and transportation accessories. All part of the DURAN® Bottle System – developed for your needs. DURAN® caps and connection systems will fit most DIN GL standard laboratory bottles available on the market.

For many decades, DURAN® beakers and flasks have been the tried and trusted backbone for working in laboratories and they still are today. Depending on your application select from a variety of different options – low and tall beaker shapes, wide and narrow neck Erlenmeyer flasks, round and flat bottom flasks especially for heating applications, our DURAN® Super Duty range characterized by higher mechanical strength for safer working in the lab and more. DURAN® beakers and Erlenmeyer flasks come with a manufacturing lot/retrace code. Using the eight-character code and the corresponding article number, a batch certificate can be downloaded.

Choose from our full range of essential glassware and accessories to assist in your daily work in scientific and industrial applications e.g. extraction, filtration, distillation, reactions under pressure, vacuum, high temperatures or airless conditions. In addition, we provide a broad portfolio of laboratory glassware components and blanks for the laboratory glassware processing industry. Here you will find diverse products such as joints, screw thread tubes, stopcocks, high vacuum valves, stoppers, and porous glass filter discs. Mainly manufactured from DURAN® glass, our products are extremely robust, virtually inert and exceptionally resistant to high temperatures. This optimum physical and chemical performance makes DURAN® the obvious choice for use in laboratories.

DURAN® volumetric glassware is designed, manufactured and calibrated to contain or to deliver volumes, with high levels of accuracy and precision. The product line comprises volumetric flasks, measuring and mixing cylinders and burets manufactured from Type I / DURAN® borosilicate glass 3.3 according to ISO as well as to USP standards. A range of bulb and measuring pipettes made from soda-lime glass as well as ergonomically shaped, color-coded PE stoppers complement the portfolio.

A range of high-quality Type I glass bottles and plastic closures developed for the needs of the pharmaceutical and biotech industry. DURAN® PURE meets the needs of international pharmacopoeia, standards and regulatory authorities. Our customers are using DURAN® PURE for GMP manufacturing of sterile parenteral products with the highest quality requirements as well as storage and transport of APIs, bulk drug intermediates, ingredients, and media. Comprehensive sets of quality documentation facilitate the qualification of DURAN® PURE. DWK Life Sciences provides batch certificates (Certificates of Analysis) for each individual DURAN® PURE batch.