Circulating Baths

Achieve the temperature you want, when you want it. Innovation, ease of use and constant reliable temperature is the foundation of our circulating baths.  From 6 liters to 75 liters all of our circulating baths are designed to work hard for your specific needs while making your job more efficient and ensuring the most precise temperature control. Click here to contact any of our sales team for your specific needs.


To learn more about our Circulating Baths, download our free information guide here!

PolyScience Refrigerated/Heated Circulating Baths

A versatile range of products to fit every need.

Capable of reaching temperatures as low as -20°C, PolyScience Refrigerated/Heated Circulating Baths provide dependable temperature control for a wide variety of laboratory cooling applications.


  • Working temperatures from -20° 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 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

Intuitive and Precise

Intuitive and Precise

Our controllers display it all: internal bath temperature, external bath temperature, set-point and more–all on one easy to read screen.

Whether equipped with the entry-level controller or our most sophisticated icon-driven SmartTouch™ interface controller, PolyScience units 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.

Advanced Programmable temperature controllers guide you through setup and operation using universal icons, on-screen help and logical menus.



Quiet, energy-efficient heat removal. Our patented WhisperCool® Environmental Control System, standard on most PolyScience Refrigerated/Heated Circulating Baths, reduces noise levels below conversational speech at a distance of two meters. In addition, our adaptive environmental technology optimizes performance, reducing overall energy consumption and prolonging equipment life.

Cool Command™ Technology

Achieve the temperature you want, when you want it. Cool Command™ efficiently and quickly extracts heat, even at elevated temperatures, ensuring the most precise temperature control.

Safe and Reliable

Safe and Reliable

Redundant over-temperature protection, high and low temperature limits and alarms alert you instantly to conditions that fall outside normal operating parameters. Lockout capability prevents unauthorized operational changes.

The elimination of RoHS-specified chemicals substances from fabricated components contributes to a cleaner, safer environment. In addition, all of our baths comply with WEEE, IEC 61010-1, IEC 61010-2-010, IEC 61326-1, DIN 12876 and are CE and ETL certified.

Class III Safety

Our Advanced Series Controllers feature temperature and float shut-off systems meeting DIN 12876-1 Class III standards for use with flammable liquids.

Simplified Setup and Maintenance

Simplified Setup and Maintenance

The front-mounted drain makes it easy to remove liquid from the bath and clean it. Our washable air filter helps keep the circulator running at peak performance and energy efficient. DuraTop™, and all surfaces, are chemical resistant and easy to sanitize. Setup instructions are printed "behind the grille."