The ISOLAB Hexagonal Concave Stopper NS 10/19 is made from durable borosilicate glass 3.3, known for its heat and chemical resistance. Designed with a hexagonal grip and a concave shape, this stopper prevents rolling and ensures a secure seal for laboratory flasks and vessels. The lower closed end of the stopper features a "drip-tip" to return any adhered liquid to the flask, making it ideal for use in titration, distillation, and other laboratory applications requiring secure sealing.
Key Features:
This stopper is a must-have for laboratory processes requiring secure sealing and accurate handling of liquids in flasks and other glassware.
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