Equipped with a GL45 threaded cap. The cap is heat-resistant up to 140°C under high-pressure sterilisation conditions, with an external screw leak-proof closure and anti-drip ring. The cap is made of PP material.

The bottle body is made of 3.3 high borosilicate glass, with heat resistance up to 350°C and thermal shock resistance of 260°C–280°C. It is an ideal container for storing aqueous solvents, with Class 1 acid resistance and Class 2 alkali resistance. It offers excellent thermal shock performance and is well suited for holding high-temperature substances. It can be used for high-temperature sterilisation operations, and features precise dimensions with strictly controlled tolerances.