The GL80, also called GLS80, is an 80mm wide-mouth thread commonly found on laboratory glass bottles, such as manufactured by DURAN® and similar brands. Its design allows for quick opening and closing with less than one full turn, making it convenient for frequent use in labs. The wide opening is ideal for handling larger samples, pouring viscous liquids, and inserting tools like funnels, spatulas, or tweezers.

Bottles with the GL80 thread are typically made from borosilicate glass, offering exceptional chemical resistance and the ability to withstand thermal stress. This makes them weLL-suited for demanding lab applications, from chemical storage to sample preparation.