The ONLY sauna company developed by 48 doctors.

For Sales (818) 805-0026

Customer Support (818) 962-0774

Frozen 4 Cold Plunge Features

US Patent Pending No: US Patent Pending No: 29/870777

Frozen™ is Patent Pending with many copycats. Always buy directly from Medical Saunas, the inventor of Frozen, to ensure that you get the genuine Frozen™ Cold Plunge with a Steam Generator.

Frozen Energy Shock Frozen Energy Shock

We engineered Frozen™ using water that is so close to freezing that it gives you the Frozen™ Shock of Energy - a burst of energy when you enter the near-freezing water. You'll love it and become addicted to Frozen's Energy Shock because it's going to wake you up.

Healthy & Saf 37° Freezing Healthy & Safe 37° Freezing

Because Frozen™ is developed by doctors, health is of utmost importance to us. To keep you healthy and safe, the lowest temperature Frozen™ will reach is 37 degrees Fahrenheit. This is close to freezing and is considered the lowest safe temperature for any cold plunge, making Frozen™ one of the safest plunges to use regularly.

FoamSeal Military-Grade Insulation FoamSeal Military-Grade Insulation

While many cold plunges merely insulate the tubes and the back of the plunge, we take it a step further by insulating everywhere, including the outer and inner tank with military-grade insulation. This approach reduces the cooling time of Frozen's water by 2X, making it cool faster than that of many of our competitors.

20 Ultra Micron Filter  System 20 Ultra Micron Filter System

The Frozen 20 Ultra Micron Filter System not only removes hair, skin cells, and debris but also captures particles as small as dust particles that are constantly flowing into the water. Unlike our competitors' micron filter systems that leave small dust particles in the water, our ultra micron filter system is so fine that it constantly removes any small particles that flow into the water, keeping your water ultra-clean.

Military-Grade Exterior UV Protection Military-Grade Exterior UV Protection

Frozen's shell is military-grade, just like the Cybertruck. It's ultra-tough and features a UV protective coating to protect it from the damages of the sun.

Indoor & Outdoor Indoor & Outdoor

We want you to enjoy the benefits of Frozen™ as much as possible, so it is designed to be used indoors or outdoors and can withstand all weather elements, including rain, sun, or snow. You can place it anywhere you want.

No Plumbing Needed, Just Plug & Play No Plumbing Needed, Just Plug & Play

No plumbing or drain is needed, and with proper care, Frozen's water can last up to 6 months. Frozen™ comes with everything you need. Just buy one and experience the natural, raw energy as you plunge into Frozen.

US Customer Service US Customer Service

When you call us, you're speaking to someone in the US, not overseas. Medical Saunas is an American-owned company. We employ Americans to solve any problems you may have..

81Techniclans all over the US &  Canada 581Techniclans all over the US & Canada

Unlike our competitors who expect you to replace parts yourself when something goes wrong, at Medical Saunas we have over 581 technicians located all over the US and Canada to service our products. You can buy with confidence knowing that Frozen will always be in working order.

Frozen 4 Cold Plunge

441 Reviews

X-Large: Up to 6'6, 350 lbs



You Save



52.28% OFF



for 36 months. $3000

down payment.

Call (818) 873-6871 to see
if you qualify!


green-box Over 5000 Bought.

*The price is heavily discounted for the month of July. Purchase now while prices are still low. Every 2 weeks the price will increase because our supplies are very limited. Enjoy the deals and call us at (818) 600-6219 with any questions you may have.

Limit 2 per customer:
Limited quantities available. Any orders greater than 2 will automatically be refunded.


All of our cold plunges come with a limited 3-year warranty included FREE.

Medical devices The only company
recommended by 26+ MDs
frozen offers More than 50% OFF
Early Bird Special Early Bird Special: The earlier
you buy, the more you save.
medicalsaunas timings Open 18 Hours a Day,
7 Days a Week.
medicalsaunas enquiry Don't Wait, Call Now
(818) 600-9823
We're here to help.

$1k FREE Cover if you order before
the end of the Prime Day Special

Professional Series
Built-in All-in-One
Pump System™
Frozen Cold Plunge 4™ Frozen Cold Plunge 5™
+ Accessories Kit
Frozen Cold Plunge 6™
+ Accessories Kit
+ Essential Oil Infuser & Steam Generator
Healthy & Safe 37 Freezing™
Frozen Energy Shock™
Dual Chiller & Advance
Filtration System™
Separated Water
Purification System™
Military Grade Exterior Shell™
UV Protected Exterior Shell
FoamSeal™ Military
Grade Insulation
20 Ultra Micron Filter™
Indoor & Outdoor Use
No Plumbing Needed
No Special Electrical,
120 Volt, Just Plug & Play
581 Technicians all over
US & Canada to service Frozen™
Rapid Internal Cooling System™
Energy Efficient Cooling System™
Extra Long Water & Weather
Resistant Bar Counter™ to hold
your drinks, jewelry, phone, robe,
towel and any accessories
Extra Comfort 500 lbs
Heavy Duty Step for easy access
Patent Pending Frozen Essential
Oil Infuser & Steam Generator™
100% Pure Natural Essential Oil Aromas Collection for your Frozen Infuser: Lemongrass harvested from Malaysia's mountain ranges, pure Nigerian Orange, Lavender, Peppermint, and authentic Eucalyptus from the Australian outback.
Introducing the world's first hybrid system that combines a cold plunge and a hot tub. Now, you don't have to buy 2 different units, enjoy the medical benefits of a hot tub and an icy cold plunge all-in-one.
Stainless Steel Heavy Duty Tub™ - While many of our competitors use cheap acrylic tubs, we've upgraded Frozen to a stainless steel tub to make it even colder and support heavy usage.
Extra Energy Efficient
Cooling System™
Extra-Rapid Internal
Cooling System™
Standard Dimensions
Dry Weight
Filled Weight (with 97 US Gallons)
(WDH) 70" x 33" x 35"
405 lbs
1169 lbs
(WDH) 70" x 33" x 35"
452 lbs
1219 lbs
(WDH) 80" x 33" x 35"
with Essential Oil Steam Generator
475 lbs
1229 lbs
X-Large Dimensions
Dry Weight
Filled Weight (with 100 US Gallons)
(WDH) 80" x 34" x 35"
674 lbs
1600 lbs
(WDH) 80" x 34" x 35"
710 lbs
1675 lbs
(WDH) 90" x 34" x 35"
with Essential Oil Steam Generator
774 lbs
1699 lbs
FREE $1k Insulated Hot Tub Style
WeatherProof Cover for Frozen if you
order before Father's Day Special ends
buynow buynow buynow

The Medical Benefits of Cold
Plunge Therapy Explained

Improve Circulation Improve Circulation

Frozen is an effective way to promote healthier circulation and overall well-being. When you take a dip in a cold plunge tub, your body is subjected to a rapid change in temperature that causes the blood vessels to constrict, pushing the blood towards the vital organs and increasing the heart rate.
This shock response floods the body with oxygen and nutrients, reviving and replenishing the organs with energy. The improved blood flow is then sustained throughout the day, contributing to a healthier circulatory system. With regular cold plunge sessions, you can expect to experience profound long-term benefits.

Reduce inflammationReduce inflammation

Cold plunges reduce inflammation in the body causing constricting the blood vessels. This reduces the flow of blood to any area that is experiencing pain or discomfort, like a sports injury, which helps to decrease swelling and inflammation. Frozen is a great way to naturally help your body heal and stay healthy!

Boost immune Boost immune Function

Taking a plunge into cold water can be an incredible boost to your health. It activates the white blood cells that are responsible for fighting off sickness, and it also causes the lymphatic system to contract—pushing fluids through the lymph nodes. This process helps detoxify your body and strengthen your immune system. Studies have shown that cold plunges can reduce upper respiratory tract infections significantly.
The Medical Benefits of Cold Plunge
Specific Health Benefits of Cold Plunges

Specific Health Benefits of Cold Plunges

Reduce inflammation

This effect is likely due to its natural pain-relieving properties. Cold plunging is a great way for athletes and fitness fanatics alike to give their bodies the relief they need after an intense workout session.

Increase Alertness and Energy

A cold plunge bath can provide a quick pick-me-up and can help you be more energized, while regular use can deliver long-term effects. When you take a cold plunge bath, you’ll experience immediate increases in alertness and energy, improved mood, reduced inflammation and soreness.

Improve Skin and Hair Health

Taking a cold plunge in a cold tub can provide numerous benefits for skin and hair health. Cold water helps to close your pores, protecting against dirt and bacteria from entering the skin, reducing inflammation and redness, and boosting circulation which leaves your skin with a radiant glow.

What are Cold Plunges Good For?

Post-Workout Recovery Post-Workout Recovery

By taking a cold plunge tub within two hours of finishing your workout, you can experience a number of important benefits. When done correctly, cold plunges can help flush away lactic acid build-up, reduce inflammation, and promote better circulation throughout the body.

These effects can lead to quicker recovery times. Additionally, because cold plunges are known to stimulate endorphin production in your brain, they can also help to improve your mood after a challenging workout.

Stress  ReliefStress Relief

Cold plunging is a great way to reduce stress. By exposing yourself to the controlled shock of cold water on a regular basis, your body gradually gets used to it and develops a resilience towards it. This adaptation also extends to other sources of stress, as cold plunging helps reduce cortisol levels – the hormone that is released when you’re under stress. Repeated cold water plunging can help your body develop a stronger reaction to and better handle all kinds of stress.

What are Cold Plunges Good For

Medical Benefits of Frozen Cold Plunge

From Dr. Aaron Cypess, a clinical researcher, to neuroscientist Andrew Huberman and orthopedic surgeon Dr. David Geier, the medical community is raving about the medical benefits of the cold plunge. Many recommend that their patients add it to their daily routine. Over 48 doctors, physical therapists, chiropractors, nurse practitioners, pain specialists, physical therapy aides, and surgeons have contributed to the development of Frozen™. As a result, it stands as the world's first cold plunge designed to help medically enhance metabolism, improve blood flow, promote muscle healing, boost circulation, reduce inflammation and stress, and provide comprehensive pain relief, ultimately leading to improved sleep quality.

Uncensored, Unedited, Unfiltered Customer Reviews

To help you decide for yourself how good Frozen Cold Plunge is, we have listed REAL, UNCENSORED, UNEDITED reviews,
emails and comments from customers who have paid for and used Frozen.

Frequently Asked Questions

Is there any bulky equipment outside of Frozen?

Many popular cold plunges have bulky equipment outside of them, creating a tripping hazard. However, their advertisements often fail to show these potentially unattractive elements because they don't display angles that include the bulky equipment in their ads. In contrast, Frozen is elegantly designed with all equipment neatly contained inside. This arrangement prevents any equipment from protruding and becoming a trip hazard, making Frozen one of the safest plunges to use.

Is Frozen Cold Plunge self-cleaning?

Yes, it has both a UV sanitizing system and an advance self cleaning filtration system that keeps Frozen's water completely clean.

Do I need to add ice to Frozen?

No, you do not need to add ice. Frozen will cool down naturally and stay cold, allowing you to use it whenever you wish. Simply set it to your desired temperature, and it will maintain that level, ready for use at any time. Initially, it might take some time to reach the right temperature, similar to a hot tub. So, if you've just set up your cold plunge and want to use it immediately, you can add ice to hasten the cooling process. But after the initial cooling, it will remain cold and ready for you to use, just like a chiller.

So, you put water in and Frozen will freeze it, right?

Yes, but not entirely. The cold plunge won't freeze the water completely into a block of ice, as that would make it unusable. Rather, it will cool the water to a temperature near freezing, allowing you to use it. You can adjust it to any temperature you're comfortable with, but it's capable of getting extremely cold, close to the freezing point, if you prefer it that cold.

How much electricity does Frozen use?

Frozen is energy-efficient. In fact, it is so energy-efficient that it uses the same amount of electricity as many mini fridge.

Can I adjust temperature and make Frozen warmer?

Yes, you can adjust the temperature from 37 degrees all the way to room temperature. According to, the average room temperature in most homes is between 68 and 72°F, so you can adjust your cold plunge from freezing cold to a comfortable 72°F.

What are the electrical requirements of Frozen?

It operates on a 120-volt 15 amp system and will work with any standard household plug. Similar to a computer or other appliances, you simply plug it in, and it will work.

Pick Your Frozen Cold Plunge

Frozen 4™ Cold Plunge


Frozen 5™ Cold Plunge

+ Accessories Kit


Frozen 6™ Cold Plunge

+ Accessories Kit

+ Essential Oil Infuser & Steam Generator