Home > Circulating Chillers >

Thermo Neslab Merlin M25 Circulating Chiller
Thermo Neslab Merlin M25 Circulating Chiller
Click Here to View the Technical Specs for the M25
Alternative Views:

Our Price: $2,380.00

Condition: Fully Refurbished and Tested to Perform at Manufacturer Specifications
Warranty: 90-Day Full Parts and Labor (Click for Info)
Typically Ships Within: 3 to 6 Business Days

Request a Formal Quote

Included Documentation: Recirculating Chiller Calibration and Preventative Maintenance Report

Quantity in Stock:1
Product Code: TH-M25

Refurbishment Protocol
Technical Specification Sheet (NEW)

Thermo Neslab Merlin M25 Circulating Chiller

The Thermo Neslab Merlin M25 is a transportable, powerful, and extremely capable CFC- free chiller that provides users with an unchallenged level of dependability and versatility. The Thermo Neslab Merlin M25 Circulating has an extremely flexible temperature range of +5 to +35°C, a precise temperature stability of ± 0.1°C, and a total above average internal tank capacity of 0.5 gallons. Because of its relatively small size and adaptable cooling range, the M25 Merlin is extremely well suited for both small and large laboratories. Along with an onboard LCD digital control and display, the M25 Merlin also features a precautionary temperature alarm to alert users whenever temperature thresholds are being reached. Translucent reservoir enables quick viewing of fluid level, and removable front panel condenser vent allows for easy access for routine cleaning and preventative maintenance.

Recommended for biotech, pharmaceutical, laser, laboratory, analytical instrumentation, printing, semiconductor, industrial, and medical use.

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

Included with the Thermo Neslab Merlin M25 Circulating Chiller:
> PD1 Pump
> Operator's Guide
> Power Cord
> Full 90 Day Parts and Labor Warranty

Thermo Neslab Merlin M25 Circulating Chiller Specifications

Temperature Range

+5° to +35°C

Cooling Capacity

741w, 2528 BTU/hour


0.5 gallons, (1.8 liters)

Length x Width x Height

20.9 x 12.6 x 23.5 in

Temperature Stability

± 0.1°C

Pump Type






Flow Rate PD1 Pump

5.7 L/min

Tests Performed on the Thermo Neslab Merlin M25 Circulating Chiller

  • Cooling capacity test is performed at 20°C 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 Neslab Merlin M25 Circulating 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 Neslab Merlin M25 Chiller Operator's Manual

Click Here to View all the Technical Specs for the M25

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 Refurbished and Tested

Most Pieces Ship within 2 to 5 Business Days

All Products Come with a Standard Warranty

Trained Customer and Technical Support

Industry Leading Overall Customer Satisfaction

Marshall Scientific's Certified Refurbishment Protocol


Our technicians decontaminate and clean all equipment upon arrival and upon purchase to create a neutral environment for lab use.

Preliminary testing is conducted to identify potential product defects, upon completion, we replace all faulty and/or under-performing parts with original manufacturer parts that perform up to specification.

Any parts known to fail or malfunction from excessive use are removed and replaced to insure the extended lifetime of your equipment.

Any necessary preventative maintenance is performed alongside repairs, so your purchase will be ready to go as soon as it arrives.

All electronics and boards are tested for proper function and response by our industry trained technicians. Any electronic deficiencies detected are immediately repaired.

Final testing cycles ensure your instrument performs fully at manufacturer specifications, guaranteeing you receive a properly working product ready for use.

Once we finish our rigorous testing and decontamination procedures, your order will be packaged to best protect it during shipment and will include delivery insurance.

Stanford University
We love shopping at Marshall Scientific! Great products, prices, and performance. Marshall Scientific provides 'tried and true' equipment at a fraction of original purchase price. I always shop here first!
Meg W. / Stanford University
Easy to find what you need with clear specs, website ordering was simple, equipment arrived quickly, very well packaged and working as expected! I couldn't ask for more, I'll definitely use them again!
A. Bradley / Honeywell
University of Maryland
They do a very high quality job worth every penny they charge. Customer service is fantastic, they can always be reached by phone or email, and the staff are very knowledgeable and ready to help.
Igor P. / University of Maryland
Click Here to View Our Other Testimonials →

Share your knowledge of this product. Be the first to write a review »

Browse for more products in the same category as this item:

Circulating Chillers
Chiller Low Temp > 5°C
Chiller Cooling Capacity Range > 501 to 1000 Watts
Chiller Flow Rate Range > 1 to 7 LPM
Chiller Low Temp
Chiller Cooling Capacity Range
Chiller Flow Rate Range