Plunge Warehouse exceeded all expectations. From seamless ordering to fast delivery and exceptional customer support, their team made the entire process easy and stress-free. Their professionalism, communication, and dedication to quality service make them a top choice for anyone looking for a reliable cold plunge retailer. Highly recommend Plunge Warehouse for anyone serious about recovery and wellness.
Description
Frozen 4™ Cold Plunge – X-Large Professional Cold Therapy System
Built for Bigger Athletes, Designed by Doctors
Introducing the Frozen 4™ Cold Plunge—the X-Large solution for athletes and individuals who need extra space without compromising on medical-grade cold therapy performance. Accommodating users up to 6'6" and 350 lbs, Frozen 4™ delivers the same doctor-designed excellence as all Frozen™ models while providing significantly more room for comfortable, unrestricted cold immersion. Developed with input from over 48 medical professionals and recommended by 26+ MDs, this professional-grade system combines expanded capacity with the innovative Frozen Energy Shock™ technology that has made the Frozen™ line the world's first medically-designed cold plunge series.
X-Large Capacity for Maximum Comfort
The Frozen 4™ was engineered specifically for taller and larger athletes who previously struggled with standard cold plunge dimensions. With its expanded interior, you can experience true full-body submersion without cramped positioning or bent knees. Whether you're a professional athlete, a larger-framed individual, or simply someone who values generous space during cold therapy, Frozen 4™ delivers the room you need combined with the medical-grade performance you deserve.
Medically Enhanced Cold Therapy Foundation
Like all Frozen™ products, the Frozen 4™ was developed specifically to deliver measurable therapeutic benefits backed by medical science. Medical Saunas identified a critical problem in the cold plunge industry: most products were designed by people without medical degrees. Their solution? Assemble a team of 48 doctors, physical therapists, chiropractors, nurse practitioners, pain specialists, and orthopedic surgeons to develop the ultimate medical cold plunge. From clinical researcher Dr. Aaron Cypess to neuroscientist Andrew Huberman and orthopedic surgeon Dr. David Geier, the medical community recognizes Frozen™ as a serious therapeutic tool engineered to medically enhance metabolism, improve blood flow, promote muscle healing, boost circulation, reduce inflammation and stress, and provide comprehensive pain relief while improving sleep quality.
Frozen Energy Shock™ Technology
Experience the signature Frozen Energy Shock™—an invigorating burst of energy the moment you enter near-freezing water. Medical Saunas engineered Frozen™ using water temperatures so close to freezing that they create an immediate, powerful physiological response. Users report becoming "addicted" to this energy shock because it creates an unmatched feeling of invigoration and mental clarity. It's not just cold—it's a precisely calibrated cold therapy experience designed to optimize your body's response.
Healthy & Safe 37°F Freezing™
Because Frozen™ is developed by doctors, health and safety are paramount. The Frozen 4™ reaches a minimum temperature of 37°F—just above freezing and considered the lowest safe temperature for regular cold plunge use. This precise temperature threshold ensures you receive maximum therapeutic benefits while maintaining safety for daily use. Unlike competing products that either can't get cold enough or reach dangerously low temperatures, Frozen 4™ delivers the ideal balance.
FoamSeal™ Military-Grade Insulation
While many cold plunges merely insulate tubes and the back panel, Frozen 4™ takes insulation to a professional level. Military-grade FoamSeal™ insulation is applied everywhere—outer tank, inner tank, and all components. This comprehensive insulation approach reduces cooling time by 2X compared to competitors, meaning your cold plunge reaches optimal temperature faster and maintains it longer with less energy consumption. The result? Faster cooldowns, lower operating costs, and consistent performance regardless of ambient temperature.
Military-Grade Exterior UV Protection
The Frozen 4™ shell features military-grade construction with ultra-tough durability comparable to the Cybertruck. A specialized UV protective coating shields the exterior from sun damage, making it ideal for both indoor and outdoor installations. Whether you're placing it in your backyard, on a patio, or inside a wellness facility, Frozen 4™ withstands the elements while maintaining its premium appearance.
20 Ultra Micron Filter System™
Clean water is essential for healthy cold therapy. The Frozen 20 Ultra Micron Filter System™ goes beyond standard filtration by capturing particles as small as dust—not just hair, skin cells, and visible debris. While competitors' micron filters leave fine particles floating in water, Frozen 4™'s ultra-fine filtration constantly removes microscopic contaminants, ensuring pristine water quality session after session. Combined with UV sanitization, you experience pharmaceutical-grade water cleanliness.
Sleek, Safe, Integrated Design
Unlike conventional cold plunges with bulky external equipment creating tripping hazards and visual clutter, Frozen 4™ features elegant integrated engineering. All equipment—chiller, filtration, UV system—is neatly contained inside the unit. This thoughtful design eliminates protruding components and presents a clean, sophisticated appearance, making Frozen 4™ one of the safest and most attractive cold plunge systems available.
Professional All-in-One Pump System™
The Frozen 4™ includes the Professional Series Built-in All-in-One Pump System™ that handles circulation, filtration, and temperature management seamlessly. This integrated approach ensures optimal performance while maintaining the clean, hazard-free design that distinguishes Frozen™ from competitors.
No Plumbing Required – True Plug & Play
Forget complex installations, plumbing requirements, or drainage systems. Frozen 4™ is genuinely plug-and-play. Simply position the unit, fill with water, plug into any standard 120V household outlet (same as any appliance), set your temperature, and begin your cold therapy journey. With proper care, water can last up to 6 months, making maintenance remarkably simple.
Unmatched Service Network
Unlike competitors who expect you to replace parts yourself, Medical Saunas maintains a network of over 581 technicians across the US and Canada to service Frozen™ products. Purchase with confidence knowing that professional support is available nationwide should you ever need it. This commitment to service excellence ensures your Frozen 4™ remains in optimal working condition for years.
The Science Behind Cold Therapy
When you immerse yourself in cold water, your body initiates a powerful physiological cascade. Blood vessels constrict (vasoconstriction), redirecting blood flow toward vital organs to preserve core temperature. Upon exiting, vessels dilate rapidly (vasodilation), flooding your body with oxygen-rich, nutrient-dense blood. This controlled shock response revives and replenishes organs while dramatically improving circulation—benefits that persist throughout your entire day.
With consistent sessions, these acute responses transform into profound long-term adaptations: enhanced cardiovascular function, improved immune response, optimized metabolic health, better stress resilience, and comprehensive wellness benefits extending far beyond the immediate post-plunge experience.
Comprehensive Health Benefits
Superior Athletic Recovery
Cold immersion within two hours of training delivers powerful, research-backed recovery benefits. Frozen 4™ helps flush away lactic acid buildup, significantly reduces exercise-induced inflammation, and promotes enhanced circulation throughout the body. The extra space allows larger athletes to achieve complete immersion, maximizing recovery potential. The result? Dramatically reduced recovery times, minimized muscle soreness, decreased injury risk, and improved performance in subsequent training sessions.
Enhanced Mood & Mental Clarity
Cold plunging stimulates substantial endorphin production—natural feel-good chemicals that create euphoria and mental sharpness. The Frozen Energy Shock™ amplifies this effect, delivering an immediate mood boost that many users describe as addictive in the best way possible. Users report dramatically improved mood, increased mental clarity, enhanced focus, and sustained invigoration lasting hours after sessions.
Advanced Stress Reduction & Resilience
Regular cold exposure is one of the most powerful stress management tools available. By consistently exposing yourself to controlled cold shock, your body develops remarkable resilience. Cold plunging helps reduce cortisol levels (your primary stress hormone), and the mental toughness gained translates directly to better stress handling in all life areas—from athletic competition to professional challenges.
Dramatically Improved Sleep Quality
The powerful combination of reduced stress hormones, substantial endorphin release, and the body's natural temperature regulation following cold exposure contributes to significantly improved sleep quality. Many users report falling asleep faster, experiencing deeper REM cycles, and waking more refreshed and energized.
Metabolic Enhancement & Weight Management
Cold exposure activates brown adipose tissue (brown fat), which burns calories to generate heat through thermogenesis. Regular cold plunging supports metabolic health, aids weight management efforts, improves insulin sensitivity, and enhances overall energy utilization efficiency.
Comprehensive Inflammation & Pain Relief
For individuals dealing with chronic pain, arthritis, inflammatory conditions, or post-surgical recovery, regular cold therapy provides genuine, measurable relief. Vasoconstriction and subsequent vasodilation help reduce inflammatory markers while cold acts as a natural analgesic, numbing pain signals and providing hours of relief after each session.
Improved Circulation & Cardiovascular Health
The vascular gymnastics of cold plunging—repeated constriction and dilation—strengthens your cardiovascular system over time, improving heart health, blood pressure regulation, and overall circulatory efficiency. This is particularly beneficial for larger athletes whose cardiovascular systems work harder during training.
Technical Specifications
- Capacity: X-Large size accommodates users up to 6'6" and 350 lbs
- Temperature Range: 37°F to 72°F (fully adjustable)
- Minimum Temperature: 37°F (Healthy & Safe Freezing™)
- Dimensions (WDH): 70" × 34" × 36"
- Water Capacity: Approximately 97 US gallons
- Dry Weight: 452 lbs
- Filled Weight: 1,219 lbs (with water)
- Energy Consumption: Comparable to a standard mini refrigerator
- Insulation: FoamSeal™ Military-Grade throughout
- Filtration: 20 Ultra Micron Filter System™
- Sanitation: Dual system (UV sanitizing + advanced self-cleaning filtration)
- Equipment Design: Fully integrated Professional All-in-One Pump System™
- Power Requirements: Standard 120V household outlet (no special electrical needed)
- Warranty: 3-Year Limited Manufacturer Warranty (included FREE)
- Patent Status: US Patent Pending No. 29/870777
What's Included with Frozen 4™
Your Frozen 4™ package includes:
- Fully assembled X-Large cold plunge tub with integrated chiller system
- Professional Series Built-in All-in-One Pump System™
- 20 Ultra Micron Filter System™
- UV sanitizing system
- Advanced self-cleaning filtration system
- Digital precision temperature control with built-in timer
- Water and weather-resistant storage compartments for robes, towels, phones, watches
- Military-grade UV-protected exterior shell
- FoamSeal™ Military-Grade Insulation
- Entry step included
- 3-Year Limited Manufacturer Warranty
- Access to nationwide service network (581+ technicians)
- Comprehensive setup and maintenance instructions
Perfect For
- Larger athletes and taller individuals (up to 6'6", 350 lbs)
- Professional sports teams and training facilities
- Individuals who prioritize spacious, unrestricted cold immersion
- Post-workout recovery and athletic performance optimization
- Chronic pain, arthritis, and inflammation management
- Physical therapy and rehabilitation programs
- Stress reduction and mental health support
- Sleep quality improvement and circadian rhythm optimization
- Metabolic health and weight management programs
- Cardiovascular function enhancement
- Building mental toughness and stress resilience
- Home wellness studios requiring professional-grade equipment
- Sports medicine clinics and performance centers
- Chiropractic offices and wellness facilities
- Commercial gyms and recovery centers
The Plunge Warehouse Advantage
Authorized Medical Breakthrough Retailer
As an authorized Frozen™ retailer, Plunge Warehouse guarantees 100% authentic Medical Breakthrough products backed by the full manufacturer warranty. Every Frozen 4™ Cold Plunge we sell is genuine, patent-pending equipment with complete warranty coverage and access to the nationwide service network.
Expert Cold Therapy Guidance
Our team specializes in cold therapy systems and understands how to match equipment to user needs. We provide personalized recommendations based on your size requirements, recovery goals, athletic demands, space constraints, and wellness objectives. From initial consultation through setup and ongoing optimization, we ensure you get maximum therapeutic benefit from your X-Large Frozen 4™ system.
Installation & Setup Support
We offer detailed assistance with proper placement (indoor or outdoor), electrical requirements verification, water management protocols, temperature optimization strategies, and usage best practices. Whether you're outfitting a home gym or a commercial facility, our support team helps you implement professional-level protocols from day one.
Seamless Delivery Coordination
We manage the entire freight shipping process, coordinating delivery schedules and ensuring your Frozen 4™ arrives safely. Given the substantial size and weight of the X-Large model, our experience with large wellness equipment ensures a smoother, more professional delivery experience.
Long-Term Partnership & Support
Your relationship with Plunge Warehouse extends far beyond purchase. We remain your dedicated resource for questions, warranty support, service coordination with the nationwide technician network, replacement parts, usage optimization advice, and troubleshooting for years to come. We're genuinely invested in your wellness success with this professional-grade system.
Shipping Policy
Frozen™ Cold Plunge products ship via freight delivery with scheduled appointments. Shipping costs are calculated at checkout based on your delivery location and current carrier rates. Due to the X-Large size and weight of Frozen 4™, proper freight coordination is essential. Orders are typically processed within 1–2 business days before freight pickup. All deliveries are curbside only—you'll be responsible for moving the unit from the delivery point to its final location. Given the 452 lb dry weight, we recommend having assistance or professional movers available.
Return Policy
Returns are accepted within 7-30 days of delivery (policy may vary—please confirm at purchase) for unused products in original packaging with all included components. Due to the substantial size, weight, and freight requirements of the X-Large Frozen 4™, return shipping fees and restocking charges apply. Please contact our support team to initiate a return authorization before returning any product.
Warranty Coverage
Every Frozen 4™ Cold Plunge includes an industry-leading 3-Year Limited Manufacturer Warranty covering defects in materials and workmanship on all components—the cold plunge tub, Professional All-in-One Pump System™, chiller, filtration, UV sanitation, and all integrated systems. This comprehensive warranty is included FREE with your purchase and reflects the confidence Medical Breakthrough has in their engineering excellence. Additionally, access to the nationwide network of 581+ technicians ensures professional service is available throughout North America. Plunge Warehouse assists with all warranty claims, service coordination, replacement parts requests, and technical support throughout your ownership.
Customer Support
Our knowledgeable team provides comprehensive installation guidance, optimal usage protocols, temperature optimization tips, maintenance recommendations, troubleshooting support, and service coordination. We're available extended hours to answer questions before, during, and long after your purchase. Contact us at (818) 805-0026—we're here to help you succeed with your professional-grade Frozen 4™ system.
Experience X-Large Medical-Grade Cold Therapy
The Frozen 4™ Cold Plunge represents the perfect solution for larger athletes and anyone requiring generous space—combining expanded capacity with the medical excellence that defines the entire Frozen™ line. With input from over 48 medical professionals, endorsement from 26+ MDs, an industry-leading 3-year warranty, nationwide service network, military-grade construction, and patent-pending design, Frozen 4™ delivers X-Large cold therapy that's not just spacious—it's medically validated, professionally supported, and engineered for optimal performance.
Transform your recovery, elevate your performance, and experience unrestricted cold therapy with the X-Large Frozen 4™ professional cold plunge system.
Payment & Security
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Frozen™ Cold Plunge, the World's First Cold Plunge with a Steam Generator
Frequently Asked Questions
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.
Yes, it has both a UV sanitizing system and an advance self cleaning filtration system that keeps Frozen's water completely clean.
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.
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.
Frozen is energy-efficient. In fact, it is so energy-efficient that it uses the same amount of electricity as many mini fridge
Yes, you can adjust the temperature from 37 degrees all the way to room temperature. According to Sciencenotes.org, 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.
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.
If we still haven't answered your question, you can contact us below and we will get back to you as soon as possible.