Freeze cells in tubes from 1 to 5mL using the Thermo Scientific™ Mr. Frosty™ Freezing Container. The simple-to-use system is designed to achieve a rate of cooling very close to -1°C/minute, the optimal rate for cell preservation. It holds 12 to 18 tubes, and a screw top lid secures samples inside in the event of accidental container tipping.

• Holds 12 to 18 tubes and has profile height of 86 or 151mm (3-7/16 to 5-5/16 in.), which saves precious freezer space during the cooling process
• Screw top lid secures samples inside in the event of accidental container tipping
• Eliminates unreliable, improvised foam container devices
• Easy to use - requires only 100% isopropyl alcohol and a mechanical freezer
• No contact with the alcohol: no wicking, no label removal and no compromise of tube hand printing
• Containers have 4.75 in. diameter (120mm) closure
• Requires: Isopropyl alcohol and a mechanical freezer