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Description
PolyScience 20 Liter Stainless Steel Open Bath SystemsOverview An economical alternative to integrated heating baths for liquid temperature up to +150C. Controller bridge rests securely on the deep drawn stainless steel reservoir, yet is easily removed for tank cleaning. Generous bath opening provides ready access to samples and the included bath cover improves stability. Features Working temperatures from ambient +10 up to 150C (MX Controller up to 135C) Advanced Programmable, Advanced Digital or MX
Overview
An economical alternative to integrated heating baths for liquid temperature up to +150°C. Controller bridge rests securely on the deep drawn stainless steel reservoir, yet is easily removed for tank cleaning. Generous bath opening provides ready access to samples and the included bath cover improves stability.
Features
- Working temperatures from ambient +10° up to 150°C (MX Controller up to 135°C)
- Advanced Programmable, Advanced Digital or MX Temperature Controller
- 6, 10, 20 or 28 liter reservoir
- DuraTop™ Chemical Resistant Bridge, Swivel 180™ Rotating Controller (on Advanced Programmable and Advanced Digital models)
- Lidded opening for optional cooling coil
- External circulation capability
- Complies with DIN 12876-1 Class I safety requirements for use with non-flammable liquids
- Includes bath cover
Controllers
Specifications and features for the PolyScience Stainless Steel Open Bath Systems vary based on the controller chosen. Some key specifications are in the table below, and additional features for each controller are listed below the table.
| Advanced Programmable | Advanced Digital | Economy MX | |
| Temp. Range (°C) | Ambient +10°C to 150°C | Ambient +10°C to 150°C | Ambient +10°C to 135C |
| Temp. Stability | ±0.01°C | ±0.01°C | ±0.07°C |
| External Temp. Control | Yes (probe not included) | Yes (probe not included) | No |
| Pump | Pressure/Suction, Variable-Speed | Pressure/Suction, Variable-Speed | Pressure only, 1-speed |
| Programmability | Ten 100-step programs | N/A | N/A |
| External Circulation | Open or closed loop | Open or closed loop | Closed loop |
| Safety Rating* | DIN 12876-1 Class III | DIN 12876-1 Class III | DIN 12876-1 Class I |
*DIN 12876-1 Class III devices are rated for use with flammable liquids. DIN 12876-1 Class I devices may be used with non-flammable liquids only.
Advanced Programmable Features
- Time/temperature programming (ten 100-step programs)
- Intuitive 4.3” (10.9 cm) SmartTouch™ display
- 6 languages: French, German, Spanish, Chinese, Arabic, English
- Variable speed pump with open- and closed-loop external circulation capability
- Swivel 180™ Rotating Controller
- On-board connectivity: USB-A & B, Ethernet, RS232/485, and external temperature probe
- Event scheduling (time & date) with real-time clock
- Review temperature trends for up to 10 days
- Multiple selectable “home” screens
- On-screen help
- Automatic and/or user-adjustable performance optimization
- 5-point calibration capability
Advanced Digital Features
- Intuitive 3.75” (9.5 cm) display with touch-pad control
- 4 languages: French, German, Spanish, English
- Swivel 180™ Rotating Controller
- On-board connectivity: USB-A & B, Ethernet, RS232/485, and external temperature probe
- On-screen prompts
- Automatic performance optimization and specific heat tuning
- Single-point calibration capability
Economy MX Features
- Large, universal icon and English display
- On-screen prompts
- Single-point calibration capability
Please note: PolyScience circulating baths are manufactured at the time the order is placed and have a 2-3 week lead time.
Key Attributes
| Incubation | Yes |
| Refrigeration | Accessory |
| Temp Range (°C) | Ambient +10 to 150 |
| Capacity (L) | 20 |
| Circulation | Internal & External |
| Brand | PolyScience |
| MaxFlow Rate (l/min) | 20.1, 13.5 |
| Temp Stability (°C) | ±0.01, ±0.07 |
| Timer | Yes |
| Alarms | Yes |
| Digital or Mechanical | Digital |
| Data connection | Yes |
| Tank Material | Stainless Steel |
| Sample Agitation | No |
| Media Racks Available | Yes |
| Warranty (years) | 2 |
| Weight (lb) | 60 |
| Width (in) | 20.9 |
| Depth (in) | 13.5 |
| Height (in) | 14.9 |
Manufacturer specifications:
Controller |
Advanced Programmable |
Advanced Digital |
Economy MX |
Sku Number |
AP20S150-A11B |
AD20S150-A11B |
MX20S135-A11B |
Working Temperature Range °C |
Ambient +10° to 150° |
Ambient +10° to 150° |
Ambient +10° to 135° |
Reservoir Capacity (liters) |
20 |
20 |
20 |
Reservoir/Tank Material |
Stainless Steel |
Stainless Steel |
Stainless Steel |
Reservoir Cover |
Included |
Included |
Included |
DuraTop |
Yes |
Yes |
Yes |
Working Access (L x W x D) (inches) |
10.4 x 9 x 6 in |
10.4 x 9 x 6 in |
10.4 x 9 x 6 in |
Temperature Stability °C |
±0.01° |
±0.01° |
±0.07° |
Display |
4.3" SmartTouch Touchscreen |
3.75" Touch-Pad LCD |
3.25" LCD |
Display Resolution (Set) |
0.01 |
0.01 |
0.1 |
Display Resolution (Read) |
0.001 |
0.01 |
0.1 |
Pump Type |
Pressure/Suction |
Pressure/Suction |
Pressure |
Pump Speed |
Variable |
Variable |
One |
Process Connections |
1/4" (F) NPT |
1/4" (F) NPT |
1/2" O.D. Barbed Tubes |
External Temperature Control Capability |
Yes |
Yes |
N/A |
Flammability Class (DIN 12876-1) |
I (NFL) |
I (NFL) |
I (NFL) |
Over-Temperature Protection / Failsafe Heater Control |
Yes |
Yes |
Yes |
Low Liquid Level Protection |
Yes |
Yes |
Yes |
Cooling Coil |
Accessory |
Accessory |
Accessory |
Included Software |
PolyTemp, TDMS file, USB driver, Time/Temp Program Generator, PolyTemp Remote iPhone app |
PolyTemp Viewer, USB driver |
N/A |
Maximum Ambient Temperature °C |
35° |
35° |
35° |
Overall Dimensions (L x W x H) (inches) |
20.9 x 13.5 x 14.9 in |
20.9 x 13.5 x 14.9 in |
20.9 x 13.5 x 16 in |
Environmental Compliance |
RoHS, WEEE |
RoHS, WEEE |
RoHS, WEEE |
Shipping Weight (pounds) |
60 |
60 |
54 |
Maximum Pressure (psi) |
4.3 |
4.3 |
2.3 |
Maximum Pressure Flow Rate (l/min) |
20.1 |
20.1 |
13.5 |
Maximum Suction Flow Rate (l/min) |
14.7 |
14.7 |
N/A |
Included Hardware |
Nylon hose adapters for 3/8", 1/4", and 3/16" |
Nylon hose adapters for 3/8", 1/4", and 3/16" |
Fitting Kit for External Applications |
Heater Wattage |
1100 |
1100 |
1100 |
Electrical Requirements (VAC/Hz/Ph/A) |
120/60/1/10 |
120/60/1/10 |
120/60/1/10 |
Regulatory Approvals |
ETL |
ETL |
ETL |
FAQ
I would like to perform a heating / cooling program where the temperature ramps from one set point to another over time. Are the PolyScience 20 Liter Stainless Steel Open Bath Systems capable of this?
That depends on the controller used. Only the Advanced Programmable controller can be programmed to perform ramps.
It is possible to have the circulation on without any temperature control being on?
No. If the circulation is on, then a temperature setting must be selected.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.8 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
In love with this
Color: White, Size: Queen (90''x90'')
Update: I’m so impressed with this comforter, I must share more since I’ve had it quite a while. I like to drink coffee in bed, and I have to bad habit of eating in bed sometimes. Hence, drips and drops and the need to launder my comforter. I do not have large heavy duty machines. They are stackable RV machines. My queen comforter fits it both the washer and dryer with ease. I can’t even tell you how many times I’ve already laundered it. I put a little Spray and Wash on the area I’ve spilled something. The stains come out every single time. But what’s most impressive is that it comes out of the dryer wrinkle free. When I put it back on my bed, it looks as new as the first time. I still get the sense of cooling, which I love. The underside feels so smooth, soft and comfortable against my skin that I no longer use a top sheet. Great product and so well made. ❤️
While this comforter is lightweight over the body, it looks cushy and cozy on my bed. I am post menopausal and often feel too warm at night while others in the home are comfortable. This comforter feels cool immediately upon crawling into bed. It does eventually warm up to body temperature, but if I become too warm, it’s easy enough to shift in my bed where the comforter stays cool. The size is perfect for my queen sized platform bed. I make my bed with ease in the mornings. Love it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 22, 2025
★★★★★ 5
Really pretty and comfortable
Super comfy, cooling, and not too heavy. I could use it all year long as well. It's not so cooling that you would be cold with it during colder seasons especially if you're a hot sleeper. I really like the seersucker texture on this and I hope they make more colors available.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
★★★★★ 5
The Cozy Cooling Comforter is amazing!
Color: White, Size: King (104''x90'')
The Cozy Bliss Cooling Comforter is truly cool, lightweight, and—with its great price point—simply the best! My family tends to sweat a lot while sleeping, but thanks to the Cozy Cooling Comforter, I feel confident we’ll be able to sleep cool and comfortably throughout the summer nights. I highly recommend that everyone go out and buy one to try for yourselves. You won't regret it—you’ll be completely satisfied!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
★★★★★ 4
Nice and lightweight, washes well!
Color: White, Size: King (104''x90'')
Great cooling comforter! Soft and cozy! And perhaps my favorite part, easy to wash and dry! But also a little small for a king size comforter. Maybe I just have a slightly taller mattress? But to have it hanging over the bottom where it looks nice, it doesn’t reach the top of my mattress. Looks fine folded back however and for the comfort, totally worth it for a summer comforter. Just wish it had shams to match!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
★★★★★ 5
Love these blankets
These have become my favorite blankets, I call them my cloud blankets, this is my 3rd one. They are very lightweight, and can fold up small for storage. They have a silky soft feel, feels at first cold to the touch, but after it's on you it picks up the heat of your body. So you sometimes have to turn it over to get the cool side again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
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