Labcon 16 or 36 Place Freezer Storage Boxes for 50 ml centrifuge tubes. These boxes are designed to hold 50 ml tubes and are perfect for long term storage of frozen samples.

• Made of polypropylene
• Freezable to −80 °C
• Autoclavable
• Includes clear lid

They include a white upper body that can be easily labeled with a lab marker, a numerical reference grid, and a pull tab to make removal from storage racks easier.