Revco Ultima II Series Cryogenic Freezers
 
 
Thermo Fisher Scientific, Inc.
Cryogenic Temperatures Without Liquid Nitrogen REVCO Ultima II cryogenic freezers are designed for long-term storage of biologicals at uniform temperatures of -140°C and -150°C, safely below the -130°C glass transition temperature of water Cell viability is improved because biologically relevant, thermally driven reactions are not known to occur