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Thermo Scientific Thermoflex 900 Recirculating Chiller
Thermo Scientific Thermoflex 900 Recirculating Chiller

Our Price: $2,595.00

Condition: Fully Recertified and Tested to Perform at Manufacturer Specifications
Warranty: 180-Day Full Parts and Labor (Click for Info)
Typically Ships Within: 7 to 10 Business Days
Included Documentation: Recirculating Chiller Calibration and Preventative Maintenance Report

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Quantity in Stock:

Product Code: TH-900

Recertification Protocol
Technical Specification Sheet (NEW)

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Thermo Scientific Thermoflex 900 Recirculating Chiller

The Thermo Scientific Thermoflex 900 Recirculating Chiller is an air-cooled unit that uses ambient-temperature room air to remove heat through its condenser. This chiller offers powerful cooling abilities, a large temperature range, and sophisticated controller technology. The Thermoflex 900 offers up to 10% greater cooling capacity than comparable units. With a highly reliable recirculation system and integrated air and fluid filters, this recirculating chiller has a low risk of leaks and low lifetime maintenance cost. Features of the Thermoflex 900 include auto refill, anti-drainback, DI resistivity internal, pressure relief, flow control, and pressure/flow control. This unit is easy to use with intuitive interface and air and water filters that are changeable while unit is in operation.

Applications include analytical instrumentation, laser, medical equipment, packaging, research, and university use.

All of our equipment is fully tested to perform at factory specifications before being shipped.

The Thermo Scientific Thermoflex 900 Recirculating Chiller includes:
  • > Turbine Pump
  • > Recirculating Chiller Calibration and Preventative Maintenance Report
  • > Operator's Guide
  • > Power Cord
  • > Full 180 Day Parts and Labor Warranty

Thermoflex 900 Recirculating Chiller Specifications

Standard Chiller Process

Fluid Temperature/Setpoint Range

5 C to 40 C

Ambient Temperature Range

10 C to 40 C

Temperature Stability

0.1 C

Cooling Capacity at 20 C

900 W (3074 BTU)



Reservoir Volume

1.9 Gallons (7.2 Liters)

Foot print or Dimensions (H x W x D)

27.3 x 14.2 x 24.6 in (69.2 x 36 x 62.4 cm)

Weight with Turbine Pump

130.5 lbs (59.2 kg)

Voltage Requirement


Flow Rate- Turbine Pump

13.3 L/min

Tests Performed on the Thermo Scientific Thermoflex 900 Recirculating Chiller

  • Cooling capacity test is performed at 20C to confirm chiller functionality
  • Flow rate is tested to verify pump is meeting manufacturer specifications
  • Chiller is temperature cycled numerous times to ensure longevity of instrument
  • Low temperature test is performed to ensure chiller is functioning within temperature range

Preventative Maintenance Performed on the Thermo Scientific Thermoflex 900 Recirculating Chiller

  • Pump is Inspected for Faults and Signs of Disrepair
  • Motor is Inspected for Shorts and Corroded Wiring
  • Plumbing is Inspected for Leaks and Corrosion
  • Filters are Cleaned and Replaced if Needed
  • Tank is Inspected for Leaks and Cleaned
  • Internal Circuitry is Inspected for Faulty/Shorted Components and Replaced Accordingly
  • Line Cord is Checked for Signs of Fray or Damage and Replaced Accordingly
  • Pump is Lubricated as Needed

Thermo Scientific ThermoFlex 900 Recirculating Chiller Manual

Click Here to View all the Technical Specs for the Thermoflex 900

Why Buy From Marshall Scientific?

Every product we offer undergoes a rigorous inspection process to verify that all manufacturer specifications are met. All of the electronics and boards are tested for proper function, and any necessary preventative maintenance is performed alongside repairs by our industry trained technicians. Our primary goal is to offer products that are as close to new as possible at an affordable price.

All Lab Equipment is Fully Recertified and Tested

Most Pieces Ship within 2 to 5 Business Days

All Products are Fully Warrantied

Trained Customer and Technical Support

Industry Leading Overall Customer Satisfaction

Bausch + Lomb
Working with Marshall Scientific was overall an enjoyable experience. Their customer service really helped me choose the product that fit my needs, and checking out was easier than I expected. Shipping was faster than expected which was also a plus!
James M. / Bausch + Lomb
I have purchased a few items from Marshall Scientific over the years and I have always had great experiences with both the products and the customer support. Chat feature definitely makes both communicating and navigating easier. I would recommend this company to a colleague.
Lila B. / Caltech
I just received the two Polyscience chillers I ordered through your ecommerce store and I couldn't be happier with my purchase. Customer service was instrumental in helping me choose the correct model. Thanks again!
Nora F. / Sanofi
Working with Marshall Scientific has been an exceptional experience. Their team assisted me in selecting the perfect recirculating chiller for my research needs. Their expertise and guidance were invaluable, and I am grateful for their support. Marshall Scientific has been vital to the success of my research endeavors.
Zara K. / Ford
Collaborating with Marshall Scientific has been a truly exceptional experience. Their fast lead time for centrifuges is unparalleled, and their commitment to quality is evident in every aspect of their service. I would highly recommend them to anyone in need of a reliable and efficient scientific equipment supplier.
Mei L. / AWS
I recently ordered pipettes from Marshall Scientific and was impressed with their great selection and quality. The pipettes were exactly what I needed and worked perfectly. I would definitely order from them again.
Aarav S. / Pfizer
Mayo Clinic
The chat support I received while selecting a thermal cycler was exceptional. The representative was knowledgeable, patient, and helped me choose the perfect product for my needs. I am grateful for their assistance.
Anneliese M. / Mayo Clinic
University of Pennsylvania
I recently purchased a ChemiDoc imaging system from Marshall Scientific and was impressed with the great condition it arrived in. The shipping was professional and the system has been a valuable addition to my scientific research.
Tyler S. / University of Pennsylvania
Massachusetts Institute of Technology
The New Brunswick Incubator Shaker that I ordered from Marshall Scientific has just arrived and I cannot say enough how satisfied I am with my purchase. The shaker works like it came straight from the factory and the longer warranty is definitely a plus. I highly recommend Marshall to anyone looking for a company that stands behind their products.
Xiao L. / MIT
Mass General Hospital
My recently purchased microplate reader from Marshall Scientific has been a much needed addition to my lab. The reader is easy to use and provides accurate and reliable results. I have used it for various experiments including ELISA, cell viability assays, and protein quantification. The reader has greatly improved the efficiency and accuracy of my experiments. Thanks again!
Larisa R. / MGH
I purchased a recirculating chiller from Marshall Scientific three months ago and couldn't be happier. The Thermoflex 2500 is a great unit and has been working perfectly. I actually bought three of them and they have exceeded my expectations.
Gavril K. / Tesla
Columbia University
I recently purchased a laboratory freezer from Marshall Scientific and I am very pleased with my purchase. The freezer is of high quality and has been perfect for storing my research samples. I use it mostly for cell culture and protein storage and it seems to do the job just fine. The overall cosmetic condition of the unit is perfect.
Juan M. / Columbia University
I would like to extend a thanks to Kyle on the other side of Marshall Scientific's chat feature to help me select the right product for my laboratory needs. Kyle was knowledgeable and helped me choose the perfect equipment for my application. The chat feature was convenient and saved me time. I would definitely use it again in the future.
Yumi S. / Rivian
Quest Diagnostics
I recently received a Vicell cell counter from Marshall Scientific and I must say, I was anxious about making such a large purchase over the internet. However, the product arrived in perfect condition and has exceeded my expectations. I use it for various applications in my lab and it has been incredibly accurate and efficient. The professional shipping was also a plus. I will definitely be purchasing from Marshall Scientific again in the future.
Ethan S. / Quest Diagnostics
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Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 2 Write a review »

  4 of 4 people found the following review helpful:
5 of 5 Good Chiller November 13, 2020
Reviewer: Shelley Ochoa from Des Moines, IA  
I recently purchased the Thermoflex 900 from Marshall. The shopping experience was painless and the product was shipped to me within a few days of the purchase. I am very happy with this chiller, it works exactly as I had hoped.

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  5 of 5 people found the following review helpful:
5 of 5 Perfect for my university October 21, 2020
Reviewer: Elvira Myers from Arlington, VA  
This refurbished chiller was a great choice for my university lab. This unit is easy to operate by the students with the intuitive interface and the air and water filters are changeable while unit is in operation, saving us time.

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