Schott Media Storage Bottle Clear Glass without Cap 1000 ml GL45 Threads

The Duran (DWK Life Sciences) 218015455 Laboratory Bottle is the industry-standard 1000 mL vessel for general laboratory storage, celebrated for its robust construction and material purity. It is manufactured from Duran® Borosilicate Glass 3.3, a pharmacopoeia-grade (Type I) formulation that is virtually inert. This material choice provides exceptional resistance to water, neutral and acidic solutions, and organic solvents, ensuring that sensitive reagents can be stored long-term without the risk of leaching contaminants. Additionally, the glass has a very low coefficient of thermal expansion, making the bottle highly resistant to thermal shock and suitable for repeated autoclaving at 121°C or higher without cracking.

From a design perspective, the bottle features the universal GL45 (45 mm) thread, a wide-neck opening that facilitates easy filling, emptying, and cleaning while remaining compatible with a vast ecosystem of caps, bottle-top filters, and dispensers. To ensure clean handling, the bottle lip is engineered to work with a plastic pouring ring (typically blue) that prevents liquid from dripping down the exterior glass. For regulatory compliance and quality assurance, every bottle is printed with a unique 8-digit "Retrace Code" that allows for complete traceability of the manufacturing batch, a critical feature for GMP and GLP environments. The exterior also features permanent white ceramic graduations and a large marking field that are fired onto the glass, ensuring they remain legible even after years of aggressive use and washing.