Eppendorf Safe-Lock Tubes are the result of 50 years of continuous improvement and development. The original Safe-Lock tubes protect your sample with excellent centrifugation stability, feature optimized sealing properties, and reliably prevent sample evaporation. Trust in the original Eppendorf Safe-Lock Tubes, because your samples deserve nothing but the best.

Seal safety! Original Eppendorf Safe-Lock lid!
Always recognize the original Eppendorf Safe-Lock Tubes by the “ep” in the lid. The hinged lid on Eppendorf Safe-Lock Tubes provides outstanding protection against accidental opening of tube lids ensuring highest sample protection. This feature is especially important when working with precious samples, or buffers containing detergents such as SDS.
During incubation in a boiling water bath, only the Eppendorf Safe-Lock Tubes remained safely closed. 10 % to 20 % opened lids were found for the tubes of manufacturers S and A, while T and G exhibited more than one–third and V nearly 80 % opened lids – see Application Note 164 for details.

Features
Hinged Eppendorf Safe-Lock lid prevents unintentional lid opening during incubation and storage
Polypropylene provides high resistance to chemicals, mechanical stress and temperature extremes
Manufactured without the use of slip agents, plasticizers, and biocides – substances that have been shown to leach from plastic consumables into the sample and negatively affect bio-assay results
g-Safe®: Depending on Safe-Lock Tube variant (see manual) exceptional centrifugation stability up to 30,000 × g prevents sample loss due to tube breakage and provides extra safety when working with hazardous samples

Options : polypropylene