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pool.down Tower: At-Home Cold Plunge, Without the Ice
pool.down Tower: At-Home Cold Plunge, Without the Ice
pool.down Tower: At-Home Cold Plunge, Without the Ice
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pool.down Tower: At-Home Cold Plunge, Without the Ice

You do not need another tub taking up your bathroom, balcony, or garden. pool.down Tower connects to the bathtub you already have and turns it into a smart cold plunge, without the ice.

Turn Your Bathtub into an Ice-Free Cold Plunge

Enjoy ice-cold plunges right at home, on demand, without dedicating a permanent corner of your home or dealing with real ice. Connect pool.down Tower to your existing bathtub, set your ice-cold temperature, and watch it chill the water down to as low as 37.4°F (3°C).

No New Plumbing Required

Connect pool.down Tower without changing your plumbing or permanently installing anything. Use it with standard acrylic, steel, wood, freestanding, and even inflatable tubs. 

Just place the adapter into your tub and start cooling.

Ice Cold Water, Ready On Demand

Schedule pool.down Tower in advance or start it remotely through the app, and get cold water on demand. Wake up to cold water already waiting for you. Start cooling before you get home from work. Let it get ready while you finish your workout.

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Set It Once. Keep It Cold.

Keep your cold plunge at the exact temperature you want it at. pool.down Tower continuously measures the water temperature and maintains your set temperature for as long as you need.

Make It a Routine

Track every session, duration, and water temperature. Follow your streaks, total sessions, personal records, and progress. Connect Apple Health to view your cold-water sessions alongside your own recovery data.

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Start With Confidence

With pool.down Tower, you can get into cold therapy right away. Start with a safety-focused onboarding session, then enjoy personalized guidance during each session to understand temperature, duration, breathing, and general best practices.

How It Works

Getting your bathtub ready for cold therapy takes a few simple steps.
How It Works

Already Have a Cold Plunge? Upgrade It.

pool.down Tower works with dedicated cold plunge tubs, too! Upgrade yours for active cooling without dealing with ice cubes, and enjoy the added benefits of precise temperature control and continuous filtration.
Already Have a Cold Plunge? Upgrade It.

Save $3,500+ a Year vs. Ice

Reduce your running costs to a minimum. With pool.down Tower, there’s no need to keep buying bags of ice. And thanks to its washable filtration system, you save on replacement filters, too.
Save $3,500+ a Year vs. Ice
*Based on 3 plunges per week, approximately 51 lb of ice per plunge, ice at $0.45/lb, and an estimated $0.49 electricity cost per cooling cycle.

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Built With Production in Mind

Bringing pool.down Tower to market takes more than proving the concept. With certifications secured, a patent application in the EU, a functional prototype, and secured manufacturing partners, we’re ready to bring pool.down Tower to your doorstep.

Designed in California. Engineered in Germany.

pool.down Tower was initiated at the Health Innovation Intensive at UC Berkeley, is backed early by a former Apple employee hired directly by Steve Jobs, and has been supported by leading universities and institutions.

Behind it is a team with experience across health, business, and mechanical engineering.
Designed in California. Engineered in Germany.

What’s in the Box


What’s in the Box

FAQ


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