Ratiolab Stoppers 11–12 mm in natural color are designed to provide a secure and tight seal for test tubes with diameters ranging from 11 to 12 mm. Manufactured from high-quality polyethylene (PE), these stoppers feature dual sealing rings that ensure leak-proof closure, preventing contamination and spillage. The natural color allows for easy visibility of sample contents.
Key Features:
Ideal for laboratories requiring reliable and contamination-free sealing solutions for test tubes.
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