Cryo Vials, Internal Thread With Silicone Washer Seal, Self-standing, 4.0ml
1. Made from special polypropylene for storing biological material or cells at temperatures as low as -196°.(only in the gas phase of liquid nitrogen)
2. Neutral Vials come without assembled cap top insert.
3. The cap top insert is available in many colors, could be supplied separately packaged with vials or assembled with vials upon demanded .