Provides the critical, repeatable -1°C/minute cooling rate required for
successful cell cryopreservation and recovery. Requires only 100%
isopropyl alcohol and mechanical freezer. Labeled with graphic,
step-by-step instructions. Holds up to 18 vials. Holder prevents vials
from contacting alcohol--no contamination by wicking; no removal of labels
or printing on vials. Containers with alcohol can be stored at room
temperature, saving freezer space