Bel-Art Cryo-Safe -1ºC Freeze Controller, 12 Place, Circular, Holds 1.0 and 1.8 mL Vials, Clear

The 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 250ml of 100% isopropyl alcohol. Once the samples have been inserted the unit should be placed in a -80°C mechanical freezer. The body of the container is clear polycarbonate, and the screw closure is high-density polyethylene. Placed inside the container is an 18 well, removable polyethylene vial holder that separates the vials from the isopropyl alcohol. A 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.