Vial has external threads, providing a smooth and uniform inner surface, thus reducing the risk of contamination.

• Manufactured from non-toxic polypropylene
• Height of tube is with cap
• Caps available with or without silicone washer
• Caps feature a long skirt and super-fast thread design that allows for single turn seal or removal
• Tube and cap are made of polypropylene, providing the same coefficient of expansion

Designed for the storage and transportation of biological material. The tube provides strength and clarity and exhibits some unique design features. Tubes can be autoclaved (121 °C) in upright position with caps loosened. Round bottom tubes can only be centrifuged up to 17000 ×g.