The Alphaplastic Conical Rubber Stopper is a fundamental laboratory consumable designed for creating a reliable seal in various types of glassware. This black rubber stopper, featuring a 12.5 mm middle diameter, is provided in a convenient pack of five pieces.
Crafted from a specialized rubber compound, these stoppers exhibit resistance to both thermal and chemical exposure, making them suitable for a range of demanding laboratory applications. It is characteristic of rubber products that a distinct rubber scent may be present.





