The Biotube™ Cluster Tube System is a polypropylene tube and rack system with tubes held in a standard 8×12 configuration.

• Alphanumeric coding and removeable 96-place ID card for accurate sample location
• Transparent cover keyed to base to prevent misalignment
• Ideal for storing, freezing and transporting reagents and specimens
• Racks and tubes can be used over a wide temperature range, −80 to 121 °C

Tubes and racks can be autoclaved up to 100 times and will resist most research chemicals. The tube supporting grid plate can be removed and used as a self-standing support. It can also be placed in a refrigerator or freezer for improved air circulation around the tubes, or in water baths to allow controlled warming of the tubes contents.