The Original Coldtub

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.

06/03/2026

Behind the scenes at Coldtub HQ 🧊 with Carbon Performance

Get to know our 8-12 person model, The PolarplungeOccupancy: 8-12 PeopleGallons: 460 GallonsSanitation: Coldtub Pal Lite...
05/28/2026

Get to know our 8-12 person model, The Polarplunge

Occupancy: 8-12 People

Gallons: 460 Gallons

Sanitation: Coldtub Pal Lite or Coldtub Pal: Semi or Fully Automated Dead Sea Salt Sanitation System

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

Acrylic Options: Silver or Black Marble

Temperature Range: 35-104

Following the Søberg Principle is tough but important while practicing cold water therapy
05/21/2026

Following the Søberg Principle is tough but important while practicing cold water therapy

Introducing Our Three New Filters 🧊 Over the past year, we've focused on R&D to develop a filter that's never been seen ...
05/13/2026

Introducing Our Three New Filters 🧊
Over the past year, we've focused on R&D to develop a filter that's never been seen before. We improved our performance by 80% compared to our previous filter, creating one that not only keeps your water cleaner but also lasts longer.

PureWater Filter 🥇
Our best filter - Made only for our Top-load Commercial Plus Icepod Plus

Pro Filter 🥈
Can only be used with the 2 filter adapter, these will perform 30% better than our standard filter. This proprietary filter is for all Pro/Commercial package models. Manufactured by us to keep your water crystal clear! You need a 2-filter adapter piece to use this filter. When using 2 filters at once, rotate the top and bottom back and forth for the best results.

Standard Filter 🥉
Replacing the old 20 Micron filters, these will keep your water cleaner for longer. We improved our performance by over 50%. This proprietary filter works for all Standard/Pro/Commercial package models. The Standard Filter replaces the old 20 Micron Filter. Manufactured by us to keep your water crystal clear.

Track your sessions with integrated heart rate tracking in the Coldtub App📲
05/09/2026

Track your sessions with integrated heart rate tracking in the Coldtub App📲

Get to know our newest 1 person model, The ColdtubOccupancy: 1 Person (All Sizes - Lay Down Style)Gallons: 100 GallonsSa...
05/01/2026

Get to know our newest 1 person model, The Coldtub

Occupancy: 1 Person (All Sizes - Lay Down Style)

Gallons: 100 Gallons

Sanitation: Coldtub Pal Lite or Coldtub Pal-Semi or Fully Automated Dead Sea Salt Sanitation System

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

Acrylic Options: Silver or Black Marble

Temperature Range: 35-104

04/23/2026

Our newest addition to our lineup🤎

Introducing our dark mode design, bringing an aesthetic that is a perfect pair with our light natural stain look
04/17/2026

Introducing our dark mode design, bringing an aesthetic that is a perfect pair with our light natural stain look

A guide to cold plunging❄️
04/10/2026

A guide to cold plunging❄️

04/08/2026

Coldtub AND a hot tub all-in-one 🧊 🔥
Can your cold plunge do both?

Address

251 Mayfield Drive
Harwich, MA
37167

Telephone

+18882957672

Website

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