R4 Series refrigerated baths and circulators

The Grant Optima™ TX150 R series of refrigerated circulating baths provides a choice of four models with different facilities, stainless steel tank capacities and cooling power to suit different applications.

The Grant combined tank/refrigeration units are robustly constructed for long life and efficient and reliable operation.

  • Powerful and efficient cooling with ozone friendly refrigerant
  • Rapid cool down
  • Quiet operation
  • Cooling/heating range: -47 to 100°C (in combination with TX150 heating circulator; dependent on refrigerated tank selected)

Choose from the following combinations of TX150 heating circulator and R tank/refrigeration units:


  • 20 litre tank with drain tap
  • refrigeration high pressure switch
  • relay control for refrigeration on/off*
  • cooling power 500W @ 0°C
  • temperature range -30 to 100°C


  • 12 litre tank with drain tap
  • refrigeration high pressure switch
  • relay control fro refrigeration on/off*
  • cooling power 1050W @ 0°C
  • temperature range -47 to 100°C

Note:The refrigeration unit can be switched off indepedendently of the circulator to allow heating only applications. All the refrigeration base units can be used up to a maximum temperature of 100°C.

*For R2 to R5 models, the refrigeration can be switched on and off by the TX150 circulator during a heating and cooling program.

LTC4 Kit - TX150 + R4  (ready assembled with heating circulator mounted to refrigeration unit)

The TX150-R4 programmable refrigerated circulating bath is available ready assembled with the circulator mounted on the refrigerator and supplied with insulated tubing and clips to form a system ready to use.