Great little machine!
Great device for anyone who is or has had knee surgery or any injury needing ice therapy.
Ossur
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Cold Rush's holistic design features a durable motor, a stronger flow rate and an industry-leading ice-to-water ratio that insures longer cooling times. Yet, it is whisper-quiet and compact, weighting just 2.1 kilograms.
By incorporating the same durable motor used in much larger mobile air conditioners and refrigerators, Cold Rush achieves a higher flow rate than its top selling competitors. Even at elevated heights, Cold Rush provides consistent cooling and excellent compression.
The water inlet is at the bottom of the reservoir to achieve a 3.80 ratio of ice to water. Also, the motor is on the outside of the chamber, so less heat is transferred to the water. The combination insures greater ice durability and longer cooling times.
Cold Rush uses a brushless motor, driven by magnets, instead of the traditional gear pump found in most cold therapy units. The result is a whisper-quiet unit that allows patients to get the rest they need to properly rehabilitate from their injuries.
Cold Rush Pads elevate the cold therapy experience to a new standard of fit and comfort. Ergonomically engineered to improve function, Cold Rush pads mimic the body's natural contours, ensuring patient comfort and compliance.
| Part Number |
Description |
| B-232000010 |
Cold Rush Therapy Unit |
| B-232002000 |
Cold Rush Knee Pad |
| B-232002300 |
Universal |
| B-232002402 | Rectangular |
| B-232002404 | Lumbar |
| B-232002500 | Foot / Ankle |
| B-232002202 | Shoulder Small |
| B-232002204 | Shoulder Large |
| B-232602100 | Hip - Left |
| B-232502100 | Hip - Right |

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5.0 out of 5 · 22 reviews
Reviewers generally say the system provides effective, quiet, adjustable cooling for extended periods and is easier to use than loose ice or cold packs. The pads can be comfortable and stay in place for some users, though shoulder pads are often difficult to attach or keep secure without help, and some find the knee pad coverage limited. Cooling time varies: reviewers report a few hours to overnight, and some wish the insulation kept ice frozen longer. A few also mention bulky or stiff hoses and that the unit may feel bulky to handle.
AI-generated from 21 published reviews. It may miss nuance; read individual reviews below.
Great device for anyone who is or has had knee surgery or any injury needing ice therapy.
KANDACE LYNN · 7/20/2025
Gift to my sister in law because mine was so very useful and easy to use. Delivered quickly and easy to use.
Jan Wolf · 6/22/2022
Easy to use. Better than a bag of peas! Thank you! lasts a long time. Hose is bulky and not to flexible.
Barbara Huelsing · 11/4/2021
No problems cooling down my shoulder after surgery! Mobile and stays very cold, using freezer packs and reusing! Hard to apply/install to myself without assistance.
Daryl D Durbin · 9/30/2021
HELPED tremendously for post surgery relief. Once ice was placed in it, it gave a definite much needed "Cold Rush" May need better insulation to keep ice frozen for longer period of time.
Ann L Rady · 9/5/2021
The only problem I see with this product is the ice does not last more than 4 hours. It does have a flow adjustment that is nice power connection would be better if it was in the back instead of the side.
James mercer · 7/28/2021
My husband had knee replacement and this machine was unbelievably helpful. He needed ice 24 hrs the first few days and this machine was a lifesaver! Stays cold 6 hrs Could fit a bottle of frozen water along with ice Easily manageable
Lisa · 5/13/2021
had a complete reconsruction of my left shoulder. found it difficult to attach and detach the hose connection. both my wife and i struggled with this. perhaps an easier way to make the connection. thanks
paul wekerle · 2/25/2021
Cant find price for Velcro straps
Pete Byam · 2/4/2021
Works as advertised. Provides long time coverage.
A.J. Staples · 8/31/2020
LOVE this machine. Far better than messing with gel cold packs or bags of ice. Using after arthroscopic knee surgery. I can usually get an evening and the following morning out of one load of ice. No mess. Adjustable cold. Can wrap around entire joint. Might be heavy, bulky for older folks. But I believe there is a compact version which might be easier to carry/fill/ empty.
Joanne · 8/27/2020
works very well. I make 1/2 plastic cups of ice and it lasts at least 12 hrs +. A good purchase. cannot compare with another as this is the only one I have used. none so far.
Fred Brautigan · 8/6/2020
Excellent quiet easy to use the equipment. However, putting on the pads around your shoulder does take someone else to help. Should think through easier to do yourself pads. Easy to use Reasonable price Easy to clean support very responsive (replaced a leaky pad for free) Pads sometimes require another person to attach to you.
Frank Noto · 7/23/2020
Overall, we are pleased with the Cold Therapy System. It seems to work well. It is nice and compact and it doesn't leak (unlike some others we tried). Set up is easy and instructions are clear. It seems to provide cooling for a fairly on time on a single filling of ice and water. The unit is very quiet when running. The knee pad, which we purchased, is adequate but could provide more coverage. The straps that hold the pad in place are comfortable and nicely padded and contoured; I would like them to be a bit longer but they work okay as is. Overall, we are satisfied with the Cold Therapy System.I would recommend it. Compact and easily portable. Very quiet to operate. Everything fits inside the unit. Good instructions. Gets cold enough to do some good. The only gripe is that coverage of knee pad is a little skimpy for individuals with large legs, especially if cold therapy is needed on both sides of the knee simultaneously, which is usually the case.
Don Sibley · 7/13/2020
I have always wanted one and have recommended this to my nursing patients. Do glad it is affordable now.
Piper Gills · 7/12/2020
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These reviews describe customers' shopping experience with Orthotic Shop, not this product.