




Tub: Compact. Durable. Built for Life.
Effortless Setup in Just 15 Minutes
Step 1: Inflate, connect hoses, fill with water, and plug in—no tools needed.
Step 2: Power on, sync with the Inergize app, and set your ideal temp and schedule.
Step 3: Step in and feel the reset—boost strength, clarity, and recovery.

Unlock Peak Performance with the Power of Cold Immersion
Backed by Science. Trusted by High Performers. Discover 8 Game-Changing Benefits of Cold Exposure for Your Body & Mind.Recover Faster. Relieve Joint Pain.
Sleep Deeper. Wake Up Sharper.
Elevate Your Mood
Master Stress. Build Resilience.
Strengthen Immunity
Boost Energy. Power Your Day.
Burn Fat. Boost Metabolism
Age Powerfully. Perform for Life.
Why Inergize?
-
Founded by a Master’s-level engineer, Inergize is built with industrial-grade compressors and premium materials—so you get fast, powerful cooling that stays consistent for the long haul.
We’re not just another startup. Inergize is the longest-running portable cold tub company in the USA, with 3X more 5-star reviews than anyone else. We launched with crowdfunding on Indiegogo in 2022, but now we’re the go-to choice for serious high-performers.
You’re not just buying a tub—you’re backed by real people. Our US-based team includes expert engineers who offer rapid video troubleshooting and hands-on support whenever you need it.
With your purchase, you’ll unlock our 27-page Cold Plunge Blueprint, bi-weekly insights straight from our founder, and exclusive access to IRL cold plunge events with the Inergize community.
Frequently Asked Questions about Cold Plunge Tub
Absolutely! The Inergize Cold Plunge Tub is made from military-grade drop-stitch polyester fabric, the same rigid, high-strength material used in inflatable paddle boards and kayaks.
- Supports 200 lbs on the edge without bending or spilling.
- As strong as an acrylic bathtub, yet portable enough to roll into a duffle bag.
We’ve fit a 250lb+ person before, you just need to be careful of the water level check out some photos here.
We’ve also had multiple >6ft 5” users comfortably fit and head dunk without their knees popping out or water spilling over the edge.
"Best part is that being 6’- 4” I STILL totally fit in the tub, all the way submerged up to my chin, without needing to do a yoga pose just to fit. I can comfortably sit, fully under the water, every time AND I can grab the top rails to pull myself up when getting out (unlike a normal tub)." - Ian Rice.
If it’s marked “In Stock”, we ship within 1 business day to the lower 48 U.S. states.
- Hawaii, Alaska, U.S. territories: Add 8 extra days.
- International orders: Email contact@inergizehealth.com for a shipping quote.
We stand by our product with a risk-free trial and warranty:
- 30-day money-back guarantee—return it if you’re not 100% satisfied.
- 1-year warranty (6 months for commercial use) covering manufacturing defects.
- Dedicated U.S.-based support to troubleshoot before processing any return.
If you ever have an issue, we’ll do whatever it takes to get you plunging again.
Yes! We offer 0% APR financing for 24 months through Affirm.
- No hidden fees
- Flexible monthly payment plans
- Instant approval check at checkout
See if you qualify in seconds, add to checkout and select Affirm—no impact on your credit score.
Specifications
Dimensions & Requirements
Tub Specifications
- Exterior Dimensions: 51” L x 27.5” W x 30” H
- Interior Dimensions: 43.3” L x 20.8” W x 30” H
- Weight (Empty): 25 lbs
- Weight (Full): 800 lbs (with water)
- Water Volume: 100 gallons
- Placing on a deck or balcony? Ensure it can support at least 800 lbs.
Get your Inergize Cold Plunge today with 0% APR for 24 months through Affirm. Flexible payment plans, instant approval, and no credit impact at checkout.
Your chiller and tub are backed by a 1-year warranty, with optional upgrades to 3 years in your cart. Our U.S.-based support team is always just a call away.
Use your HSA or FSA benefits for instant reimbursement via TrueMed at checkout. No paperwork. No hassle. Just savings.
Zero-cost delivery and no hidden fees. In-stock units ship within 1 business day, so you can plug in and plunge—fast.
Included Bonus Items ($200 Value)
Every Inergize Cold Plunge comes with a bundle of essential accessories to enhance your experience.




