Thermo Neslab RTE-221 Refrigerated Bath/Circulator

Rent Thermo Neslab RTE-221 Refrigerated Bath/Circulator
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Thermo Fisher Scientific Thermo Neslab RTE-221
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The Thermo Neslab RTE-221 Refrigerated Bath / Circulator, -23°C to +100°C refrigeration system skips the intermediate HCFCs that many other brands will use, and provides the ultimate solution to the ozone problem: an absolutely Freon® Free refrigeration system.

This refrigeration system is continuously operational below 50°C and is balanced by a cycling heater. Above 50°C, the compressor may be shut off to take advantage of ambient conditions for temperature control. This translates to energy savings and rapid heat up for you.


  • Spectrophotometers
  • Refractometers
  • Electrophoresis
  • Rotary Evaporators
  • Isoelectric Focusing
  • Calibration
  • Chromatography Columns
  • Condensers
  • Densitometers
  • General Laboratory Cooling
  • Polarimeters



  • CFC Free refrigeration, insulation and packaging
  • Three controller options: Analog, Digital or Microprocessor
  • Seamless bath reservoirs for convenient cleaning
  • Versatile combination force/suction pump
  • Rapid cool-down with no waiting
  • Reservoir drain for quick fluid changes
  • Removable front grills for routine cleaning
  • Remoting Microprocessor Controller allows bath monitoring at convenient locations
  • Built-in handles for easy lifting and safe leverage
  • High Temp/Low Liquid Safety
  • Designed for UL. CSA, CE and IEC certifications



Temperature Range
Analog -23°C to +100°C
Digital/Microprocessor -23°C to +150°C
50 Hz Models Analog: -21°C to +100°C
Digital / Microprocessor: -21°C to +150°C
Temperature Stability ±0.01°C, Analog ±0.1°C
Cooling Capacity 500 Watts at 20°C
50 Hz Models: 500 Watts at 20°C
Pumping Capacity 15 Lpm at 0' head Max Head 16' (4.9M)
Heater 800 Watt / 800 Watt Boost
Work Area (L x W x D) In.: 9.25 x 10 x 9
Cm.: 23.5 x 25.4 x 22.9
Bath Volume Gallons/Liters 5.4 / 20.5
Dimensions (H x W x D) In.: 27.875 x 12.375 x 18.375
Cm.: 70.8 x 31.4 x 46.7