Ice-Cold Recovery Without the Ice Thanks to the FiberCore Flex Cold Plunge Fiber Core Flex Tub
The AMBOHR Fiber Core Flex is a 66 inch acrylic cold plunge tub with an optional chiller. Tired of hauling bags of ice every single morning just to get a few minutes of real cold? You fill this acrylic tub with a garden hose, plug in your chiller, and the water drops to as low as 34°F and stays there. Stretch out full-length, breathe, and get on with your day. Want it simpler still? Take the tub on its own and plunge with ice or naturally cold water whenever the mood strikes.
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Cooling Power: Chiller-equipped models cool water to as low as 34°F and hold a steady temperature, no ice needed, with faster cooling of 10-12°F per hour from the 1HP chiller
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Tub Design: Acrylic and Resin bathtub shape built for full-body, stretched-out immersion, with a large capacity bathtub in 111-gallon and 140-gallon capacities
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Quiet Operation: Noise below 65db, with silent mode as low as 50db
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Model Choices: Available With Ultra Chiller, With Pro Chiller, or as Only Tub to match your space and budget
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Heating & Cooling: Ultra and Pro Chiller options both handle cooling and heating for contrast therapy
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App Control: Smartphone connectivity lets you set temperature and timer remotely
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Easy Water Changes: Included AMBOHR Drainage System empties the tub in minutes
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Indoor or Outdoor: Weatherproof construction suited to home, gym, patio, or backyard setups
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Fast Setup: Assembly takes about 5 to 7 minutes, plus a required 24-hour rest period before first use
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Shipping: Free factory direct shipping from CA or Texas, with typical US delivery in 5 to 7 days
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Warranty: 1-Year warranty and 24/7 customer support included on every order
Variant comparison
|
 |
 |
 |
| SKU |
OKAWITH |
OKAWITH-2 |
OKAONLY |
| Price |
$3,399 |
$2,999 |
$1,529 |
| Chiller (included) |
AMBOHR Ultra Chiller · 1 HP · cools to 34°F · Cooling & Heating · 150W pump |
AMBOHR Pro Chiller · 1 HP · cools to 34°F · Cooling & Heating · 120W pump |
N/A |
| What's included |
Tub + Ultra Chiller unit & connecting hoses |
Tub + Pro Chiller unit & connecting hoses |
Tub only · drainage system & manual |
Room to Stretch Out in the AMBOHR Cold Plunge Fiber Core Flex Tub FiberCore Flex
Most plunges make you fold up like a deck chair. This one doesn't. The tub-style shape gives you room to lie back and extend your legs, which is exactly what you want when the first thirty seconds hit.
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High-grade acrylic construction in Acrylic and Resin that complies with CE for environmental and health safety
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Weatherproof material built for both indoor and outdoor placement, from a home bathroom to a gym floor, backyard or patio
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Contoured interior with a chrome inlet nozzle and a small return port for steady water circulation
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Rolled rim and deep footwell shaping a large capacity bathtub you can settle into
- Cleans like a car wash, sponge and mild detergent, rinse, air dry
After each session, pop the cover back on or lay something over the top. It keeps the water cleaner and makes the next plunge that much quicker to prepare.
How the Go Chiller Cold Plunge Fiber Core Flex Tub Keeps Water at 34°F
Pair the tub with a chiller and the ice budget disappears. The unit circulates your water, pulls it down to as low as 34°F at a rate of 10-12°F per hour from the 1HP chiller, then holds that temperature session after session, so every plunge is the same controlled dose of cold instead of a guess. It runs quietly too, with noise below 65db and a silent mode as low as 50db.
Two chiller options come bundled, and a third choice skips the chiller entirely:
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With Ultra Chiller: AMBOHR Ultra Chiller, 1 HP, cools to 34°F, Cooling & Heating, 150W pump
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With Pro Chiller: AMBOHR Pro Chiller, 1 HP, cools to 34°F, Cooling & Heating, 120W pump
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Only Tub: no chiller, add ice or use naturally cold water
Both chiller bundles handle cooling and heating, so the same unit that ices you down in July can warm the water when you want contrast therapy instead.
Set the Temperature and Timer From Your Phone
Smartphone connectivity means you don't have to crouch beside the unit to make a change. Set your target temperature, switch between Fahrenheit and Celsius, and run a timer straight from the app, then walk away while the chiller does the work.
The AMBOHR app is built to give you full control over heat and cold levels and session timing, so your plunge is ready the moment you are. The chiller pairs with the Smart Life ice bath chiller screen on your phone for the same timer, temperature and unit controls.
Draining and Refilling Made Painless
Changing the water is the chore that quietly kills most plunge routines. The included AMBOHR Drainage System is designed for effortless water removal and quick cleaning, so emptying the tub takes minutes rather than an afternoon with a bucket. A perforated circular white drain cover sits flush in the smooth acrylic floor, acting as the centre floor strainer, with a perforated bottom drain and a small side port handling the rest.
Filling is just as plain. A standard garden hose does the job, and you're ready to go.
How People Use a Cold Plunge
Athletes, lifters and everyday people use cold plunges as part of their training and daily routines. With the tub at home or in your gym, the routine is easy to keep.
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Ready when you are: the water holds your set temperature between sessions, with no ice to buy
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Start gradually: begin warmer and shorter, then work down over time
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Full-body immersion with room to settle in and breathe
This information is for general education and isn't medical advice. If you have a medical condition, are pregnant, or take medication, talk with your doctor before starting cold water immersion.
Quick Setup, Free Shipping and a 1-Year Warranty
Assembly takes roughly 5 to 7 minutes. Position the tub, connect the chiller, plug into a standard US-style outlet at 110 or 120V, and fill. One note worth following closely: after your package arrives, set the product on a flat surface and let it sit undisturbed for 24 hours before switching it on.
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Free shipping, factory direct from CA or Texas
- Orders placed before 5:00 PM EST ship the same business day, with typical US delivery in 5 to 7 days via complimentary FedEx®/CEVA® Ground
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International shipping available via FedEx®/CEVA®, timing depends on your location
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1-Year warranty and 24/7 customer support included with every order
Contact Us if anything isn't right and we'll make it right.
Frequently Asked Questions
Are the materials non-toxic?
Yes. The tub uses Acrylic and Resin and complies with CE for environmental and health safety.
How cold does the chiller get?
Water can be cooled down to as low as 34°F, giving you a true cold plunge without buying or handling ice.
How fast does it cool?
The 1HP chiller pulls the water down at roughly 10-12°F per hour.
How much water does the tub hold?
It's a large capacity bathtub, available in 111-gallon and 140-gallon capacities.
Is the chiller loud?
No. Noise stays below 65db, and silent mode runs as low as 50db.
Can I use it outdoors?
Yes. The weatherproof material is designed to withstand indoor and outdoor use. Cover the tub after each session for easier cleaning next time.
How do I clean it?
Scrub the surface with a sponge and mild detergent, rinse thoroughly, and let it air dry. Wipe the chiller with a damp cloth only, and avoid excessive water exposure to protect the internal components.
Does it require electricity?
Yes, a standard 110 or 120V outlet.
Can I use it without a chiller?
Absolutely. Add ice or use naturally cold water, which suits occasional use or climates where the tap water is already cold.
Is it returnable?
Yes, unused and unopened in its original packaging. Check our Return Policy for details.
What's the lead time?
Check the information shown directly below the buy button for current shipping time and estimated delivery date.
Product Specs
| Spec |
Value |
| Tub Dimensions |
168.2cm x 79.8cm x 61cm (66.22in x 31.4in x 24.02in) |
| Tub Capacity |
111 gallons and 140 gallons |
| Tub Material |
Acrylic and Resin, high-grade acrylic, weatherproof, CE compliant |
| Minimum Water Temperature |
34°F with chiller |
| Cooling Rate |
10-12°F per hour from the 1HP chiller |
| Noise Level |
Below 65db, silent mode as low as 50db |
| Chiller Temperature Range |
34℉ to 104℉ (Ultra Chiller and Pro Chiller) |
| Chiller Function |
Cooling & Heating (Ultra Chiller and Pro Chiller) / N/A (Only Tub) |
| Chiller Horsepower |
1 HP (Ultra Chiller and Pro Chiller) |
| Chiller Power Supply |
1.19kw (Ultra Chiller and Pro Chiller) |
| Water Pump |
80A (Ultra Chiller) / 60A (Pro Chiller) |
| Water Pump Power |
150W (Ultra Chiller) / 120W (Pro Chiller) |
| Chiller Weight |
45kg (99.21lbs) for Ultra Chiller and Pro Chiller |
| App |
AMBOHR app with Smart Life ice bath chiller screen |
| Power Requirement |
Standard 110 or 120V US-style outlet |
| Placement |
Indoor and outdoor |
| What's Included |
With Ultra Chiller: tub + Ultra Chiller unit & connecting hoses / With Pro Chiller: tub + Pro Chiller unit & connecting hoses / Only Tub: tub only with drainage system & manual |
| Setup Time |
Approximately 5 to 7 minutes |
| Warranty |
1 Year |
| Model Options |
With Ultra Chiller ($3,399) / With Pro Chiller ($2,999) / Only Tub ($1,529) |
| SKU |
OKAWITH / OKAWITH-2 / OKAONLY |
| Brand |
AMBOHR |