The Rubber Stopper No. 2 is a high-quality laboratory stopper designed to securely seal standard test tubes used in clinical, research, microbiology, chemistry, and educational laboratories. Made from premium, chemical-resistant natural or synthetic rubber, it ensures an airtight and leak-proof seal, preventing contamination and evaporation during sample handling, incubation, storage, or transport.
Ideal for hospitals, diagnostic labs, schools, universities, biotech labs, and industrial testing facilities.
Fits standard small test tubes (approx. 10–12 mm diameter)
Made from high-grade natural or synthetic rubber
Airtight & leak-proof seal to protect samples
Chemical, heat & moisture resistant
Flexible yet firm grip to prevent slipping
Suitable for general lab use, culture tubes, sample storage & heating applications
Available in solid or one-hole/two-hole variations depending on use
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