PRESSURE PLUS+ bottles, designed with a special geometry, which allows their use in applications that involve vacuum or pressure, from -1 bar to + 1.5 bar gauge. Consequently, they offer optimal security for both the user and the content. In addition, they are also available in their PRESSURE PLUS+ PROTECT+ version, combining the properties of both bottles and allowing safer work and handling of reagents and culture media. Available from 100mL to 1L, in both clear and amber glass (PROTECT+ are only found in clear glass).