BoxPlunge Cold Plunge Liner. Chest Freezer to Cold Plunge Liner, Chest Freezer to BoxPlunge. Deep Freezer Liner. Convert a 14 or 14.8 cuft deep Freezer onto a Cold Plunge. BoxPlunge Liner.
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Availability:
Only 2 left in stock, order soon!
Arrives
Tuesday, May 12
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Features
- CHEST FREEZER COLD PLUNGES: 100% Quiet, ALL-IN-ONE design, Does NOT condensate water (no drips), can be used in coldest winters or hottest summer (All year round cold plunge)
- COMPATIBILITY: Custom-designed liner specifically made to convert internal volume of 14 to 14.8 cu. ft. standard chest freezers into cold plunge tubs for ice bath therapy. Use it along the BoxPlunge filter (Not included) and control box for max. performance (Not included). Fits in 10 cu. ft. chest freezers but with a "loose fit".
- ENERGY EFFICIENT: A chest-freezer is well insulated and will not affect your electric bill
- MAKES ICE: Unlike other cold plunges, this one can create it's own ice! Will create ice even when outside temperatures are above 120F
- MAINTENANCE: Smooth, waterproof liner can be wiped down with minimal effortno more scrubbing stubborn stains. Can be used with any SPA chemicals.
- MODULAR: By removing the liner, you protect the original freezer interior and avoid wear or damage to its finish. You can easily remove the liner and all equipment without compromise your chest freezer
- WINTER-PROOF: Because it's ALL-in-ONE design everything is well insulated from the enviorment. By installing the BoxPlunge filter (not included), your water won't ever freeze even during the coldest winters (no need to use a heater)
- FUNCTIONALITY: Transforms your chest freezer into a dedicated cold plunge setup that can make it's own ice
Description
Transform your chest freezer into a rejuvenating cold plunge oasis with the BoxPlunge liner. This easy-to-install solution seamlessly converts your existing chest freezer into a personal cold therapy tub, offering an affordable, convenient alternative to expensive pre-built systems. Designed for a perfect fit, the BoxPlunge liner creates a watertight seal that safeguards your freezer’s interior and provides a smooth, comfortable surface for your cold plunge experience. Easy set-up: simply place the liner inside your chest freezer, secure it, and fill with water. Plus, using a chest freezer rather than an external chiller has several KEY ADVANTAGES: Completely Silent – No noisy equipment disrupting your space, it has no fans nor air inlets to clean! Highly Energy Efficient – Keep costs down without sacrificing performance. You can run your chest freezer cold plunge for less than $10 a month (at California's energy rate). Compact Design – No bulky external chiller to manage. Can create its own ice - Yes, that's right. Get on-demand icy water even when your outside temperature exceeds 120°F. No Condensation – Excellent insulation prevents moisture buildup. Crafted with durability in mind, the BoxPlunge liner ensures long-lasting performance for your regular cold therapy routine. Reliable in Cold Winters – Chest freezers consistently maintain low temperatures even in the harshest climates, with the BoxPlunge powerful filter (not included) you don't even need to winterize the plunge, water will not freeze. Make the most of your cold plunge setup at home with this cost-effective, low-maintenance, and ultra-quiet solution. Crafted with durability in mind, the BoxPlunge liner ensures long-lasting performance for your regular cold therapy routine.
Product Dimensions: 55 x 29 x 30 inches
Item Weight: 7.04 pounds
Manufacturer: BoxPlunge
Item model number: Box14Liner
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, May 12
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
The liner was installed and the chest filled with water. 8 hours later come to check on the progress of the water temp and found a leak coming from the drain. Investigated were the leak was coming from and found water between the liner and chest wall. I will give this product 1 more chance but if I get the same results. I would suggest you save your money and just seal up your chest freezer and not use the liner.
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Reviewed in the United States on April 3, 2025 by steven
I got the Medium size for my chest freezer, and honestly, it’s been a game-changer for my cold plunge setup. Installation was a breeze-literally just placed it inside, secured it, and filled it with water. The liner fits like a glove, creating a watertight seal that keeps my freezer protected and the water icy cold. It’s super durable, feels heavy-duty, and wipes down easily, so maintenance is no hassle at all. I love that it’s energy-efficient-my electric bill hasn’t spiked, and it even makes its own ice, which is wild when it’s crazy hot outside. Smoothing out the edges took a bit of care, but nothing a quick hair dryer didn’t fix, as the instructions suggested. Overall, for the price it’s a fantastic, affordable way to turn a freezer into a legit cold therapy tub. Five stars, no question!
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Reviewed in the United States on August 21, 2025 by Clark thompson
Experienced the exact same issue the liner has a hole somewhere causing it to leak. Getting a replacement and hoping for the best.
Reviewed in the United States on April 22, 2025 by MitchelH
The BoxPlunge Cold Plunge Liner is a pretty nice and efficient way to turn a standard 14–14.8 cu. ft. chest freezer into a full-function cold plunge. The fitment it good, and installation is super simple. The liner feels pretty durable and is easy to clean. Plus, it protects the freezer’s interior, so there's no long-term damage. Its a pretty neat concept to convert a chest freezer into cold plunge. You can adjust the temp and the chest also has a lid you can close. Only thing is that its quite pricey just for a liner.
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Reviewed in the United States on May 16, 2025 by Jason J
We have a Frigidaire 14.8 that I bought specifically for a cold plunge. But I've held off because I didn't wanna go through all the trouble of trying to caulk and seal the freezer for a cold plunge. This liner fits perfect. However, it was a little disappointing that they recommend you still go ahead and permanently seal your freezer. I'm going to try it this way for a little while and if I choose to keep the set up, I'll seal it. The material is some kind of vinyl. It's decently thick and I think if you're not careless, it's unlikely to puncture. The only thing is you it's very stiff when it's cold so I waited for a warmer day when first fitting it. They say you can use a hairdryer to get out wrinkles. They also recommend you putting foam underneath your freezer so that when it's fully loaded with water at the bottom does not flex. This is not underneath the liner, but underneath your entire external part of your freezer. They give you a set of neoprene toe booties and couple of patches. So I think the liner is pretty innovative the fit is good. I also feel sitting on the vinyl liner is more comfortable than sitting directly on the metal. However, it was a little disappointing that they still recommend sealing the inside of your freezer. But I guess it's better safe than sorry particularly if you freezer indoors. Ours is outside, so I'll take a chance. I also think cleaning this will be a lot easier than the raw metal surface.
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Reviewed in the United States on April 6, 2025 by Always looking 4
This is a great way to do ice baths. We started out with a collapsible ice bath, which is probably how most people get started. But the collapsible ones are a pain to set up and tear down, so we rarely did it. Plus you have to either make ice or buy it every time you want to use it. There are all kinds of approaches - freezing water bottles (which takes a lot of freezer space), using insulation and lids, moving it outside seasonally, etc. But the chest freezer conversion is by far the easiest if you have the space. It keeps it at a steady temperature, it's always ready to go, and the operating cost is very low (ours is about five bucks per month). Plus the chest freezer isn't as expensive as you might think. We just watched for deals, and were able to score a Criterion 14 cubic foot for around two hundred bucks. There is really not much you need to do for the conversion. You need a liner and some way to keep the water clean. Some people fill their chests with water without a liner. Chest freezers come with a foil liner in there, and are inherently somewhat water tight. But it's not intended for a human to climb in there! - the foil liner is thin, and a pretty risky move in my opinion. Remember, you'll be filling it with about 700 pounds of water, plus the weight of your body. Either way, you do need to apply marine sealer to the inside of your freezer. Regardless of the quality and thickness of the liner, leaks will eventually happen. Also there's condensation, splashing, etc. So the inside of your freezer needs to be coated if you plan on filling it with water. This vinyl liner fits almost any brand chest freezer between about 10-15 cubic feet. It's a perfect fit for the 14-foot range, otherwise it's going to be a little bit loose which is no big deal. Plus the liner makes it comfy. I recommend a weighted hot tub pillow to sit on. I've also used foam tile squares (like floor squares) to sit on - they're not very cushy, but they provide some padding and dry quickly. Some people remove the hinges from the lids of their chest freezers to install this liner, and lift off the lid each time. But I prefer to leave the lid on - they're heavy to lift off, it might get dented, it's just too much hassle to remove the hinges in my opinion. This liner will facilitate both ways. Either way, if you're ever done using this as a cold plunge, you can empty it, remove the liner, and use it s a normal chest freezer. The vinyl is legit - it's about 20 mil, which is the same thickness as a real in-ground swimming pool liner. It's much thicker than a kiddie pool or something like that (which would be about 10 mil). Plus if you ever snag it or rip it, it's easy enough to throw a pool patch on it. As for keeping the water clean, this brand has some solutions for that also (not included). Some people use ozone - which has pros and cons. It is extremely effective at sterilizing the water, and it's great for your skin. Ozone does nothing for filtering out oils and debris - in my view you still will need to filter the water. But there are two big issues with ozone for me. First, you should be really careful being around the machine while it's on - you shouldn't breathe ozone. Second, if there is any metal in the vicinity, ozone will cause it to rust. If the metal is wet, it will rust (oxidize) as quick as one day. So I don't like running ozone in my basement, and I would be even more concerned about damage to any metal parts in the freezer. So I do use ozone, but only occasionally, and not as a primary cleaning method. I prefer filter pumps, just like a hot tub. I also like adding minerals or using mineral cartridges (silver and copper). They make special cold plunge chemicals, but you can use hot tub chemicals too. If you have a filter pump, you can use the pump if you ever need to empty or change out the water. Anyway, I love the liner, and it's easier than you may think. All you need is a chest freezer, this liner, and some way to keep the water clean. Final word of caution - be extremely careful with chest freezers if you have children.
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Reviewed in the United States on February 19, 2025 by Customer Review
This liner fits my 14.0 Cu ft freezer. The liner is a sturdy material and while it has patches for if it get a hole, I don’t think it will. I’m careful to not wear jewelry or anything when I plunge. The instructions are helpful with videos. Everything is very clear on how to start and they walk you through the process both with or without removing the door. It also came with toe caps which was fun to try out and keep the toes slightly warmer when plunging. Overall, it’s a very nice liner. I’ll update if any issues arise as I plunge pretty much every day.
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Reviewed in the United States on February 27, 2025 by Jami Lilo