Easy-to-use unit provides 'controlled rate' freezing samples at approximately −1 °C per minute, which is needed to prevent lethal intracellular freezing and successful cryopreservation. Prior to inserting vials, the unit should be filled with 250 ml of 100% isopropyl alcohol. Once the samples have been inserted the unit should be placed in a −80 °C mechanical freezer.

• Clear polycarbonate container body; high-density polyethylene screw closure (Ø 124 mm)
• 18-well, removable polyethylene vial holder, placed inside the container, separates the vials from the isopropyl alcohol
• Plastic foam insert surrounds the vial holder
• Alcohol filled containers can be stored at room temperature
• Universal symbols printed on the container show instructions for use

Contanier (I. D.× H): 112×72 mm