... or 316 stainless construction.CFC-free refrigeration.(optional for customer’s request refrigeration:R507,R410A, etc.) ... vacuum, condenser temperature, run time, ambient temperature. For water based samples, the -55C condenser is the ... , the -80 C condenser provides maximum performance.For labs that need quick turn-around, Heating element ... 60Hz220V 50HZ /110V 60Hz freeze dryer for Biological product