Cover for test tube

Test Tube Cap / Stopper is designed to securely seal test tubes and prevent sample leakage, contamination, or evaporation during handling, storage, and transport. Made from high-quality polyethylene or rubber, these caps ensure an airtight and leak-proof seal while maintaining compatibility with various laboratory chemicals and reagents. They are available in different colors for easy sample identification and in multiple sizes to fit both glass and PET tubes commonly used in laboratories. The caps are durable, flexible, non-toxic, non-pyrogenic, and can be supplied as sterile or non-sterile, depending on application requirements.