Internally threaded Thermo Scientific Nunc Cryotube Vials vials incorporate a special silicone gasket seal for use in liquid nitrogen storage systems. Not to be used for freezing in liquid nitrogen (liquid phase storage) as this poses a safety hazard.
Externally threaded vials are ideal for mechanical freezing or vapor phase liquid nitrogen storage. Deep skirted cap facilitates aseptic techniques.
Both styles are available in conical or round bottoms and also in self-standing and starfoot base design. Starfoot fins interlock with grooves of CryoTube Rack to allow one handed operation.
Externally threaded stepneck vials feature a cap that is the same outer diameter as that of the vials.
Designed to withstand temperatures from -70° to -196°C; suitable for storage from general cold storage refrigeration (+4ºC) down to the vapor phase of liquid nitrogen
External or internally threaded options available
Radiation sterilized polypropylene vials with polyethylene screw caps are manufactured from nontoxic, nonmutagenic, nonpyrogenic materials
All Cryotubes include a writing area and volume estimation line