SKU: 20669751865

Julabo FL Series Strong Recirculating Coolers

Sale price$8631.00 Regular price$9590.00
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Description

Julabo FL Series Strong Recirculating CoolersOverview The FL series offers a new generation of chillers for routine cooling applications within the laboratory and industry. The temperature stability of the PID control is 0. 5C. All units can easily be cleaned and are provided with a splash water proof keypad with LED temperature indication. On the front of the units there is an RS232 interface as well as an alarm shutdown. The filling port is easily accessible placed on the top under a lift up

Overview

The FL series offers a new generation of chillers for routine cooling applications within the laboratory and industry. The temperature stability of the PID control is ±0.5°C. All units can easily be cleaned and are provided with a splash water proof keypad with LED temperature indication. On the front of the units there is an RS232 interface as well as an alarm shutdown. The filling port is easily accessible placed on the top under a lift-up cover. Another hinged tray serves as a file for the operating manual or other documents concerning the installation. The removable venting grid allows an easy cleaning of the condenser, the drain tap is easily accessible behind the grid. All models include an easily visible level indication. Another advantage is the venting slots are on the front and rear and therefore the units can be placed directly one beside the other (space saving).

Features:

• Ergonomic design and easy operation
• Splash-proof keypad with integrated mains switch
• Large, bright LED display
• Reliable Microprocessor PID temperature control
• Filling level indicator
• Powerful immersion pumps, suitable for continuous operation
• Permissible temperature in return line +80°C
• Easy filling from the top with hinged protective lid
• Low liquid level protection with optical and audible alarm signal
• Integrated stainless steel bath tanks
• Removable venting grid for cleaning of the condenser
• Front drain
• No side vents
• RS232 interface for PC-connection
• IP class according to IEC 60529: 21
• Alarm output, potential-free change-over contact (max. 30 VA)
• Pressure Indicator
• By-pass valve to adjust pump pressure

FLW2503, FLW2506, FLW4003, and FLW4006 models are Water Cooled compressor models.

Key Attributes 
Type Chillers
Incubation No
Refrigeration Yes
Temp Range (°C) -20 to 40
Capacity (L) 24 to 30
Circulation External Only
Brand Julabo
MaxFlow Rate (l/min) 40, 60
Temp Stability (°C) ±0.5°C
Timer No
Alarms Yes
Digital or Mechanical Digital
Data connection Yes
Tank Material Stainless Steel
Sample Agitation No
Media Racks Available No
Warranty (years) 1
Weight (lb) 271
Width (in) 23.6
Depth (in) 29.9
Height (in) 45.3

 

Manufacturer Specifications

 

FL2503 and FL4003 include 2 barbed fittings for tubing 3/4" inner dia. (pump connections G3/4" male)
FL2506 and FL4006 include 2 barbed fittings for tubing 1" inner dia. (pump connections G1 1/4" male)
FLW2503 and FLW4006 include 2 barbed fittings for tubing 3/4" inner dia. (pump connections G3/4" male). Cooling water connection G 3/4" male with barbed fittings for tubing 1/2" inner dia.
FLW2506 and FLW4006 include 2 barbed fittings for tubing 1" inner dia. (pump connections G1 1/4" male). Cooling water connection G 3/4" male with barbed fittings for tubing 1/2" inner dia.

FAQ

Do the FL Series chillers have any means for temperature feedback and control of cooling?

There is no such functionality built in, but the FL Series chillers do have an RS232 connection, so you can control operation with a PC. If you also had a temperature sensor connected to the PC, you could program a sort of feedback mechanism that would control the cooling.

Unless you have a program allowing you to easily manage equipment via RS232, it's not a particularly simple task and would require the appropriate coding capabilities.

 

Can I run a Strong FL Series Recirculating Cooler continuously under maximum load?

Yes. Julabo chillers are designed for maximum operation at maximum load specifications. However, be very certain of the cooling power requirements such that you are not overloading the chiller. In a stressful situation such as continuous operation, overloading the chiller could damage the condenser and render the chiller useless. Also, for air-cooled models, operating the chiller in a hot environment or a dirty / dusty environment could decrease the efficiency of the chiller, so if operating at or near maximum load be sure that the chiller is in a cool, clean environment.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 20669751865

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Carnegie, US
★★★★★ 4
Durable bone that you can add a spreadable treat to
Color: Blue
Our German Shepherd was 4 months old when we purchased this. She’s going to be 6 months soon. She has been teething really bad. We wanted some way to sooth her pain. This product was just what we needed. We put it in the freezer with some peanut butter in the center on both sides. Once frozen we give to our puppy. She loves it. When we open the freezer she recognizes the ziplock package that it was delivered in which we store it in our freezer. She jumps around until we give it to her. She loves it and it keeps her occupied for a while. It is very durable. I did not notice any smell when we received it. It does not make any noise. The plastic material is safe for animals. To clean I put in the dishwasher. The only reason I did not give it 5 stars is because sometimes the peanut butter gets stuck in it and may need to go through the dishwasher twice which is not a big deal. Or you can hand wash it. I found the dishwasher was best for us. You do not even have to put anything on it, but our pup likes it. I would recommend to others.
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Reviewed in the United States on June 15, 2025
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Verified Purchase
Kristi K
Waukegan, US
★★★★★ 5
Well-made and great size for the price!
Color: blue black
Very tough product, no odor of plastic, good toy for outside, perfect for medium or large dogs. Noise isn't too bad and the color is cute as well. Can't destroy this toy!
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Reviewed in the United States on May 26, 2026
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Haley
Houston, US
★★★★★ 5
Durable Great for aggressive chewers
Color: Blue
Will make one whole room smell like fake bacon, but my dogs love it and it’s super strong and durable. I have a lab mixed with rotty and a full lab so it’s a perfect match.
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Reviewed in the United States on June 3, 2026
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RUBEN ARELLANO
Port Orchard, US
★★★★★ 5
Indestructible bully toy
Color: Blue
We have a bully that chews through everything, believe it when I say, he loves this n it is still in one piece. Where I put treats in it or not. He’s also able to play tug of war with is brother with this toy. I will be buying additional ones!
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Reviewed in the United States on May 16, 2026
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Lucie P
Omaha, US
★★★★★ 4
Durable, Dogs love it
Color: Red
My Frenchie is a crazy chewer and can chew up a nylabone in a day, so I was looking for something that would last longer. So far this is holding up, and is pretty durable. Both my dogs like it a lot, it’s easy for them to grasp, and chewable but still very tough material. I suspect at some point it’ll wear down, but not for a while. The size was just as described / expected. Not too small and not too big
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Reviewed in the United States on May 23, 2025

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