Cold Plunge buying guide
A cold plunge keeps water at a set cold temperature so you can step in any day without buying ice. The big differences are the chiller, the filtration and whether it lives indoors or out.
What are your options?
Chilled plunge tubs
An insulated tub with a built-in or attached chiller that holds the water at your chosen temperature, often down to the high 30s °F.
Contrast systems
Pairs cold with heat (a hot tub or sauna) for alternating hot-and-cold sessions.
Standalone chillers
Add a chiller and filter to a tub you already own, or upgrade an entry-level setup.
What to look for
- Lowest temperature the chiller can hold, and how fast it recovers
- Filtration and sanitation (ozone, UV, cartridge filters)
- Indoor vs. outdoor rating and insulation
- Size for your height, and drain/fill convenience
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Get ReferredWhere to buy
Featured cold plunge coming soon
We're finalizing partnerships with top brands in this category. Featured products will appear here soon. In the meantime, tell us what you're looking for and we'll connect you with a trusted dealer.
What the research says about cold plunge
Cold Plunge Benefits: What the Studies Show (and the Catch for Strength Training)
What research says about cold water immersion for soreness, mood, alertness and metabolism, plus why timing matters if you lift for muscle.
Read the article Cold PlungeContrast Therapy: How to Combine Sauna and Cold Plunge
What research says about alternating hot and cold, a simple starter protocol, and how gyms and studios can set up a contrast circuit members love.
Read the articleCommon questions
How cold should a cold plunge be?
Most people start in the 50s °F and work down gradually. Talk to your doctor before starting cold exposure, especially if you have a heart condition.
How often do I change the water?
With good filtration and sanitation, many owners change water every few weeks to a few months. Each vendor gives its own guidance.
The information on this site is for general education and is not medical advice. Talk with your doctor before starting heat, cold, light, pressure, float, PEMF or vibration therapy, especially if you are pregnant or have a medical condition.
Not sure which setup is right for you?
Tell us about your space, goals and budget. We'll point you to the right equipment and connect you with a trusted dealer, at no cost to you.