Screw Cap Microtubes satisfy all demands from sample storage in vapor phase liquid nitrogen to boiling applications

Manufactured under the most rigid QC standards, these tubes are certified to be free of RNase, DNase, and pyrogens. The O-ring is manufactured from autoclavable ethylene-propylene that forms a perfect seal against the rim of each tube. A leak-free seal, coupled with the naturally low-binding quality of 100% pure virgin polypropylene, make these screw cap tubes perfect for almost every long term storage application. Tethered caps are already on tubes.