Circulating Baths

With sleek lines and exceptionally large digital displays, our Circulating Baths are easy on the eyes. But even the most attractive lab partner needs to get down to business. So we've made our Circulating Baths exceptionally hard working and easy to operate and maintain.

PolyScience Refrigerated Circulating Baths

A versatile range of products to fit every need.

Capable of reaching temperatures as low as -40°C, PolyScience Refrigerated/Heated Circulating Baths provide dependable temperature control for a wide variety of laboratory cooling applications.


  • Working temperatures from -40° to + 200°C
  • Temperature stabilities to ±0.005°C
  • Capacities from 7 to 75 liters
  • Four controller types with large, intuitive displays and multiple communication options
  • Large bath openings and easy to clean surfaces
  • Swivel 180™ Rotating Controllers
  • LidDock™ Lid Stowing System
  • DuraTop™ Chemical Resistant Deck
  • WhisperCool® Environmental Control System
  • Cool Command™ Technology

PolyScience Refrigerated/Heated Circulators come with the following accessories:

  • Reservoir cover
  • Bypass tubing
  • Male inlet and outlet adapters for 3/8, 1/4, and 3/16" (.95, .63, and .47 cm) tubing, 1/4" to M16 adapters also included on 50Hz units
  • 6' (1.83 m) standard grounded electrical cord with country-specific plug

Select a Controller

  Advanced Programmable (AP) Advanced Digital (AD) Standard Digital (SD) MX
Maximum Temperature 200°C 200°C 170°C 135°C
Temperature Stability ±0.005°C ±0.01°C ±0.04°C ±0.07°C
Pump Type Pressure/Suction, Variable-Speed Pressure/Suction, Variable-Speed Pressure Only, 2-Speed Pressure Only, 1-Speed
Programmability OpenMode - unlimited programs and steps N/A N/A N/A
Connectivity USB-A & B, Ethernet, RS-232/RS-485, Remote On/Off, External Temperature Probe USB-A & B, Ethernet, RS-232/RS-485, External Temperature Probe RS-232 N/A

Select a Reservoir

  7 Liter Low-Profile 7 Liter Space-Saving 7 Liter Space-Saving 15 Liter 15 Liter 20 Liter 28 Liter 45 Liter 75 Liter
Minimum Temperature -20°C -20°C -40°C -30°C -40°C -30°C -30°C -25°C -20°C
Cooling Capacity @ 20°C 200 W 200 W 360 W 915 W 1000 W 915 W 915 W 1400 W 1400 W
Working Access (L x W x D) 6.2 x 5.6 x 5 in
15.7 x 14.2 x 12.7 cm
6.2 x 5.6 x 5 in
15.7 x 14.2 x 12.7 cm
6.2 x 5.6 x 5 in
15.7 x 14.2 x 12.7 cm
8.4 x 9 x 5.5 in
21.2 x 27.6 x 14 cm
8.4 x 9 x 5.5 in
21.2 x 27.6 x 14 cm
9.9 x 12.5 x 5.5 in
25 x 31.6 x 14 cm
12.4 x 14.1 x 5.5 in
31.4 x 35.9 x 14 cm
21.6 x 15.7 x 5.5 in
54.9 x 39.8 x 14 cm
21.6 x 15.7 x 9.4 in
54.9 x 39.8 x 23.9 cm


Vertical Tabs



Whether equipped with the entry-level controller or the most sophisticated, PolyScience Refrigerated/Heated Circulating Baths are extremely easy to use. Clear navigational buttons and menu prompts guide you through setup, making operational and temperature set-point changes simple and precise.



Patented WhisperCool® technology reduces overall equipment noise, increases refrigeration efficiency and lowers energy consumption.

Energy Saving

Cool Command™ technology carefully regulates the amount of cooling required, saving energy while delivering fast cool-downs and more precise control at elevated temperatures.

Safe & Responsible


All models feature user-settable high-temperature safeties as well as redundant over-temperature protection and comply with IEC 61010-1, IEC 61010-2-010, IEC 61326-1, DIN 12876 and are CE and ETL certified. Our DuraTop™ surface is cooler to the touch when operating at high temperatures.


An ISO 14001:2004 compliant Environmental Management System, a WEEE-compliant recycling program and RoHS-compliant manufacturing are just some of the green initiatives PolyScience has undertaken to minimize our impact on the environment.

Easy to Maintain

Easy to Maintain

Accessing the reservoir drain and removable air filter for maintenance is as simple as removing the circulator's front panel. Advanced Programmable models even remind you when it's time for filter cleaning.