The MTC Bio C2615-W 15mL Polypropylene Centrifuge Tubes, Flat Screw Cap, Individually Wrapped and Sterile, 17 x 118mm, Pack of 300, are dependable screw-cap conical tubes that are packaged into individual sterile packets. No more fumbling around with open bags or racks of 50 tubes. No more wondering if the tubes in the bag you opened yesterday are still sterile. With the individual wrapping, each tube is sterile right up until the moment you open the convenient peel pack.

The individually wrapped conical tubes are made of premium polypropylene for clarity and centrifugal strength. The tubes and caps may be frozen at temperatures as low as -86°C. The maximum centrifugal force for the 15mL tubes is 12,000xg. The caps have a flat top surface for easy marking and labeling. The individual tubes are sterile, DNase, RNase, and pyrogen free, and include high contrast graduations, as well as a white "frosted" marking area.