The Original Coldtub

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United States
Harwich, MA
The Original Coldtub

We make advanced hydrotherapy pools, tubs for professional and amateur athletes.

COLDTUB™ designs and manufactures cold water therapy products (aka cryotherapy, cold water immersion, balneotherapy, hydrotherapy). Our flagship product, the POLARPOOL® COLDTUB™ was inspired by Don DelNegro, head Athletic Trainer for the Boston Bruins hockey team, as he searched for a better alternative to common steel whirlpools for his athletes. Don, like many other trainers, was concerned about the safety, sanitation, size, chemical maintenance, and set up time required by traditional cold water tanks.

01/28/2026

Get to know our most popular model, The Icepod Plus

Occupancy: 1 Person (All Sizes)

Gallons: 100 Gallons

Sanitation: Coldtub Pal-Fully Automated Dead Sea Salt Sanitation System with Supplemented Ozone System

Panel Options: Western Red Cedar(Natural Stain or Dark Walnut Stain), or Black Thermowood

Acrylic Options: Silver or Black Swirl

Temperature Range: 35-104

01/19/2026

Founded by Declan and Jake’s parents, Coldtub was launched in 2007 and continues to strive for excellence today❄️

11/15/2025

Great hearing more about cold water therapy from this morning! ❄️

11/12/2025

Cadence x Coldtub
We share more than a mission, we share an element - Salt.
The foundation of balance, restoration, and recovery to maximize your mental & physical performance 💪 💧

10/15/2025

Can’t beat a Coldtub after a 5k❄️

Thanks to for having us and to .studio_ for activating with us🙌

Let’s run it back🏃

09/20/2025

Sights from Day 1 ☀️✅

09/09/2025

Coldtub Run Club this Saturday 10am! ☀️🧊🏃
Walk or run with us completely free - link to sign up in comments!
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251 Mayfield Dr Smyrna, TN 37167

08/26/2025

Deep Tropics Debut 🌀 ☀️ 🧊
Thanks for having us Vinyl Wellness x Framework!

07/26/2025

Another successful run club in the books! Thanks for everyone who came out and all the brands that supported! Don’t miss the next one🙌🥶

07/01/2025

This event really hit home for us given and both played Tight End all throughout their college/pro careers. We also have a bunch of ex-college football players on our team so this was awesome to see for them as well . Been on our vision board for the past few years so loved seeing this one come to light! Thanks for everyone who helped make this happen 🙌🙌

06/20/2025

So excited to see this update come to life! This is years in the making, still remember our first R&D meeting on this idea. We strive to keep pushing the boundaries of this space and creating new heights that have never been reached before. Couldn’t be happier about how this came out. Go download it now and start tracking your Coldtub sessions! If you have an Apple Watch the app will record your heart rate every second that you are in the tub, creating a graph and HRV at the end of the session. This can help you really dial in what time, temperature, time of day, etc is best for your body. Give it a try and let us know your feedback! You can also create a guest account to access the session tracking feature if you do not own a Coldtub

Address

251 Mayfield Drive
Harwich, MA
37167

Telephone

+18882957672

Website

http://www.coldtub.com/

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Our Story

COLDTUB™ designs and manufactures cold water therapy products (compared to: cryotherapy, cold water immersion, balneotherapy, hydrotherapy). Our flagship product, the POLARPOOL® COLDTUB™ , was inspired by Don DelNegro as the head Athletic Trainer for the Boston Bruins hockey team; he searched for a better alternative to common steel whirlpools for his athletes. Don, like many other trainers, was concerned about the safety, sanitation, size, chemical maintenance, and set up time required by traditional cold water tanks.

“We now have more than half our team taking cold plunges as part of their recovery program and utilizing its benefits daily. We could not be more happy with the results we have seen in our players and the teams' success.” -Don DelNegro, MS, ATC (L), CSCS

COLDTUB™ streamlined and perfected the art of using a whirlpool at your own convince to help foster the best performance an athlete needs to compete at the highest level. The incredible benefits can be realized by anybody who seeks a high level of physical performance, faster recovery, and rapid rehabilitation. So far, professional sport teams, college sport departments, physical therapists, sports medicine facilities, hospital-based rehab clinics, military, individuals, and training facilities are utilizing COLDTUB™ cold water products.

The extremely compact size and portability make it suitable for even recreational athletes who simply want to recover rapidly from their sport so they can get back out there doing what they love, faster, healthier, and with less pain.