- White rubber stopper designed for laboratory flasks, with dimensions of Sub23 x 29 x 28mm5, ensuring compatibility with a variety of tapered tubes. - Provides an effective conical sealing function, making it essential for maintaining airtight conditions in laboratory settings. - Guarantees a secure seal for laboratory flasks, preventing contamination and ensuring accurate experimental results. - Versatile use as an end plug for water pipes or as an exhaust valve in specific setups, enhancing its functionality beyond laboratory applications. - Constructed from durable rubber, this stopper delivers reliable sealing performance, meeting various laboratory needs while ensuring longevity. - Ideal for applications such as chemical experiments, where maintaining integrity of samples is crucial, or for use in water filtration systems requiring dependable sealing. - Trustworthy and efficient, this stopper is a practical solution for professionals seeking quality sealing options in both laboratory and industrial environments.