Used 1.03 square feet shell area edwards 304 stainless steel lab size freeze dryer. serial #2468 model #MFDO.1. chamber dimensions 8 x 13" x 14" deep with plexiglas cover. (1) 12" x 12" shelf temperature range -40/45°C to 99°C. condenser capacity 4 kg of ice temperature -50°C (5°C). single stage hermetic compressor 470 watt refrigerant R502. designed with stoppering system. electricals 1/60/220 volt. 197 cfm model #E2M5 vacuum pump. overall dimensions 33" wide x 58" high x 27"