- Maintains temperature below freezing for four hours
- Store up to (12) 1.5 mL microcentrifuge tubes
- Sealed-in insulation material
Molded polystyrene box, with cover, will maintain a temperature of -15°C for 1.5 hours (below 0°C for up to four hours) when taken out of a -20°C freezer. Internal 12-place support for 1.5 mL microcentrifuge tubes is surrounded by a sealed-in insulation material. Insulation maintains low temperature required for safe storage and transport.