Sterilized and pre-assembled with caps open
Our newest Saf-T-Seal™ tubes have an inert TPE O-ring molded directly into the white polypropylene tethered cap. The O-ring cannot fall out, and an optical quality control process ensures a perfect seal. The tubes are made from high-clarity, medical-grade polypropylene. Recommended for centrifugation up to 20,000 x g and storage at -80°C or vapor phase LN2. Certified free of detectable RNase, DNase, DNA, PCR inhibitors and pyrogens. Sterile and pre-assembled with caps open.