Frozin 400 Cold Plunge Tub. High-efficiency Foam Insulation for Superior Ice Retention over Uninsulated Barrel or Inflatable Ice Baths. 100 Gallon Frozen Capacity.
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Availability:
20 left in stock
Arrives
Jan 3 – Jan 5
Recently Viewed
Style: Cold Plunge Tub Only
Features
- Introducing the Frozin 400 Cold Plunge Tub, your ultimate solution for a superior daily plunge. Chiller Ready, with its high-efficiency insulation, this tub ensures superior ice water retention for extended periods.
- Designed for comfort and convenience, the Frozin tub boasts a large 400-quart (100-gallon) capacity, making it perfect for individuals up to 6'3" tall and weighing up to 300 pounds. Say goodbye to smaller capacity uninsulated barrel of ice or inflatable ice bathsFrozin offers superior comfort and performance.
- Crafted with durability in mind: The Frozin tub is proudly made in the USA with high-quality materials. Its fully foam insulated and Roto Molded structure ensures years of normal daily use, whether you're using it in the morning, afternoon, or evening.
- Chiller Ready: With 3/4 inch IN and OUT hose plugs, Frozin Tub is compatible with all chillers in the market.
- Easy to maintain, the Frozin 400 Cold Plunge Tub is designed for hassle-free cleaning and maintenance, making it a perfect addition to your home or gym. Experience superior cooling, comfort, and convenience with the Frozin tub.
- Versatile in use: the Frozin tub is perfect for Sports Training Recovery, post-workout relaxation, and Pain Relief Soaks. It's the perfect addition to your everyday morning routine, suitable for use by your husband, wife, son, daughter, or even a grizzly bear!
- Versatile in use: the Frozin tub is perfect for Sports Training Recovery, post-workout relaxation, and Pain Relief Soaks. It's the perfect addition to your everyday morning routine, suitable for use by your husband, wife, son, daughter, or even a grizzly bear!
Color: Custom
Material: Low Density Polyethylene (LDPE)
Brand: REZVANI
Product Dimensions: 28"L x 48"W x 28"H
Style: Cold Plunge Tub Only
Finish Type: Polished
Item Weight: 90 Pounds
Installation Type: Freestanding
Capacity: 100 Gallons
Shape: Rectangular
Color: Custom
Material: Low Density Polyethylene (LDPE)
Brand: REZVANI
Product Dimensions: 28"L x 48"W x 28"H
Style: Cold Plunge Tub Only
Finish Type: Polished
Item Weight: 90 Pounds
Installation Type: Freestanding
Capacity: 100 Gallons
Shape: Rectangular
UPC: 850060924002
Manufacturer: REZVANI
Part Number: 400
Item Weight: 90 pounds
Item model number: 400
Finish: Polished
Included Components: Lid, Tub
Date First Available: April 30, 2024
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jan 3 – Jan 5
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- Financing through Apple Pay
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Top Amazon Reviews
Style: Cold Plunge Tub Only
The media could not be loaded. Ok, I’ve put together a cold plunge with a Frozin 400 tub and an active aqua 1/4 hp chiller. Along with filters and pipes, etc., the whole build cost $1950.00. I’d been using a cheap ($35 inflatable) tub from amazon. I made ice in our chest freezer. In the winter, when tap water was 50°, I could add the ice I made and get it to 46° or 45°. But once it warmed up out and the water temp went into the mid-sixties, I couldn’t keep up, ice-wise. Needing 45 pounds of ice to get to 45° was just not gonna work. I first started looking into a chiller to use with a cheap inflatable tub like I’d been using. I figured that since things tend to degrade over time, maybe I should get a stronger chiller than I “needed” so that if it started wearing out it would still get the water cold enough. I was thinking 1/2 horsepower. Then I had my thinking turned around: it was pointed out to me that if I had a sufficiently well insulated tub, the chiller wouldn’t need to work much at all, and I wouldn’t need a super strong one running all the time, wearing out and using power. I started looking into insulated tubs. This was when I discovered that cold plunges must be a pretty high-profit business. How much could a human-sized cooler cost, anyway? $500? Yeah, “LOL.” So, so much more. At first I was getting pretty sold on the Ice Barrel 500. But at $1600-ish dollars it seemed like a lot, and my basement (where the plunge would go) has low ceilings so something I have to step up and into could be a problem. I looked at complete systems with great insulation, like the Mod Tub 2, but holy smoke, $3300 before taxes? (Also, the idea of a tub with a lid and latches gives me, um, chills. As a friend of mine said, “that’s not an ice bath, that’s a murder machine”). A wealthy friend of mine sent me a link to the Morozko ice baths, which go up to like thirty-five thousand dollars. Hey, the 45° water is still just 45° water, spending more doesn’t make it somehow better water. I know a person can make their own insulated tub, but I am not that person, and I know it. So I was closing in on the Ice Barrel 500, when I came across the Frozin 400. It’s a 100-gallon cooler-shaped tub, with a lid that sits on top, has no hinges, and can be held down by included clips if you choose to install them (no). It’s made by “Rezvani” which I gather is a furniture maker who realized they could get into this market, undersell everyone, and still do pretty well. That’s my theory anyway. So I bought it. It arrived in like 3 days. So far I love this thing. Before I had a chiller set up I added water to it and put in ice to get it to 50 degrees. The next day the temp had only risen to 51. It really is insulated. And I was a bit concerned it would be like one of those styrofoam coolers and I’d be able to break it by leaning on it or something. Nope. It’s solid. I have zero concern about breaking it. AND it has well-positioned, metal-threaded ports for water in, water out, and drainage. I’m so happy to not have to drill. At this writing it’s all set up and used a few times and I’m happy with it, glad I didn’t spend $600 more on the Ice Barrel (though people seem to love it and think it’s worth the investment), and, at 6’1”, I can dunk my head underwater in it. Really seems like plenty of room. I don't know why you'd pay more, this tub is great.
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Reviewed in the United States on May 28, 2025 by Dmitri Bilgere
Style: Cold Plunge Tub Only
UPDATE: I bought a 2nd tub, and connected a chiller that can do heat. So now I’ve got a hot tub and a cold plunge that I step directly into from my hot tub. The rubber latches for the lid that were recently added by Frozin are excellent. I assure you, I’ve done my research. This is the best insulated tub. Just DIY it with the chiller or get a chiller from these guys ///////// (previous review) - I’ve been obsessed with cold plunges for the past 18 months. I looked at all the options for tubs and ended up doing a DIY job with a 100 gallon rubbermaid stock tank and a chiller. Used some plywood, insulation, screws, hinges etc to make a container for the stock tank so it would be insulated during hot weather. My insulation wasn’t as effective as I would have liked, so I did a ton of research on insulated cold plunge tubs. There are a few reasonable ones out there, but the price was always beyond what I wanted to spend. I got a targeted ad on YouTube for this tub, and I ordered it. I’m 6’3”, 235 lbs with broad shoulders and I was skeptical about whether it’d be big enough. It’s totally big enough, insulation seems solid (not sure how to test/compare it but it seems like a big cooler, so I’m assuming it’s as good as the Grizzly 400), and the attachments are easy to set up with your own chiller if that’s the route you’re going. And the drain is a great feature. I called the company prior to buying it and they were totally accommodating and friendly and answered all my many questions. The only drawback to this tub is that the lid isn’t connected, no hinges or anything. But that’s the same as most of this product’s competitors. Overall: 5 stars, excellent product in the growing “cold therapy” market.
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Reviewed in the United States on June 28, 2024 by MS2017 MS2017
Style: Cold Plunge Tub With Chiller
I couldn’t be happier with this purchase! The quality is top-notch, and the company went above and beyond—following up by text a few times to make sure I had everything set up correctly. That kind of service is rare these days. A co-worker of mine went with a cheaper chiller and it failed after just a few months, but mine has been running strong without a hiccup. This unit is built to last. Performance-wise, it’s impressive. It easily holds at 38°F (I can only last about three minutes at that temp!) and I’ve been loving it at 41°F, where I can comfortably stay in for about ten minutes. If you’re looking for reliability, durability, and serious cold, you can’t go wrong with this bad boy. Highly recommend!
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Reviewed in the United States on August 23, 2025 by Amazon Customer Amazon Customer
Style: Cold Plunge Tub Only
My inflatable cold plunge tub kept having problems and I wanted to get a hard shell. This was the most affordable one that looked decent so I pulled the trigger. Very solid. The hooks ups fit my existing tubing from a previous cold plunge build with no leaks at all. I’m 6 foot tall, 250 lbs and it was the perfect size for me as well. Highly recommend.
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Reviewed in the United States on September 19, 2025 by Aaron Melcher Aaron Melcher
Style: Cold Plunge Tub Only
I love this tub! I had initially purchased one of those inflatable tubs. It didn’t hold temperature primarily due to the cover not sealing tight. This tub has a tight cover and holds temperature surprisingly good. It’s a great size. I’m 6ft 240lbs and fit great.
Reviewed in the United States on October 26, 2025 by Duane A Bennett
Style: Cold Plunge Tub Only
I really enjoy this cold plunge tub! As someone who is 6’3”, I can easily dunk my head and fit comfortably—well, as comfortably as you can in freezing water! The build quality is excellent, and it holds temperature incredibly well. I have it connected to a chiller, and thanks to the great insulation, the chiller barely has to run to maintain the temperature. The only issue I encountered was with the plastic fittings that came with the tub. Both the shut-off valve and the threaded connector broke on me, but after upgrading them with higher-quality replacements, everything has been working flawlessly. That said, this is a fantastic cold plunge, and I’d absolutely recommend it to anyone looking for a durable, well-insulated option!
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Reviewed in the United States on February 7, 2025 by Brice Gould Brice Gould