- Accommodate 15- or 50-mL centrifuge tubes for long-term storage
- Store down to -90°C (-130°F) or autoclave up to 122°C (252°F)—wide temperature range
- Inspect, reference, and identify samples through the and clear lid and easy-to-read numeric grid
- Label or mark boxes on the white top portion
- Compatible with most 4" stainless steel freezer racks