Eppendorf Safe-Lock Tubes combine all the experience of over 45 years of constant improvement and development. The original Eppendorf Safe-Lock Tube gives your sample outstanding stability during centrifugation, perfect sealing and evaporation protection.

• Hinged Safe-Lock lid prevents accidental lid opening and allows contamination-free lid opening
• 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
• Precise lid sealing for lowest evaporation rates during long-term storage
• g-Safe?: Exceptional centrifugation stability of up to 25,000 x g (Eppendorf quality and PCR clean) or 22,000 x g (Eppendorf Biopur) prevents tube breakage.
• Large frosted lid and surface on the side for easy labeling
• Graduations provide an easy volume reference
• Guaranteed functionality between –86°C to 100°C
• Autoclavable when open (121°C, 20 min)

Eppendorf quality: Manufactured under clean room conditions; for basic applications such as enzymatic digestion, plasmid DNA isolation, sample and reagent storage.

Eppendorf Biopur: Batch certified free from PCR inhibitors, DNA, DNase, RNase, ATP, endotoxins; individually wrapped and sterile; the highest purity grade, ideal for pharmaceutical, medical and forensic applications as well as work with endotoxin-sensitive cell cultures.