Seal-Rite® tubes have a dependable seal and can be easily opened and closed. The tubes stay closed during boiling, freezing, centrifugation, and exposure to phenol/chloroform mixtures. The tube thickness is optimized for optical clarity and strength. Manufactured from 100% virgin polypropylene (PP) and certified RNase, DNase, DNA free and non-pyrogenic.

For applications involving rigorous boiling or high concentrations of SDS, try our Seal-Rite® locking tubes.

• RNase, DNase, DNA free and non-pyrogenic
• Thumb-friendly beveled lip
• Graduations every 100 µl
• Optically clear
• Frosted side writing surface
• Flat cap accepts lab markers
• G-force rating up to 25,000 x g
• Choice of natural, amber, or five individual or assorted colors