Modern Reform
Kooru Cold Plunge Tub
Kooru Cold Plunge Tub
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Handcrafted Redwood Cold Plunge Tub with Shou Sugi Ban Finish
Where Exceptional Craftsmanship Meets Modern Cold-Water Wellness
Bring the ritual of cold-water immersion into your home with a cold plunge created for those who appreciate exceptional craftsmanship, natural materials, and thoughtful design.
Handcrafted in San Diego from carefully selected Redwood, each tub is individually crafted for the discerning buyer. Every board is hand-selected, finished, and carefully treated using the traditional Japanese Shou Sugi Ban technique, creating a striking surface that celebrates the natural grain and depth of the wood.
This is not a mass-produced wellness appliance.
It is a beautiful, handcrafted piece designed to become part of your home and your daily wellness ritual.
Crafted by Hand. Finished by Fire.
The defining character of this cold plunge begins with its wood.
Each Redwood board is carefully selected before being treated using Shou Sugi Ban, the traditional Japanese technique of charring the surface of wood with flame.
Fire transforms the character of the material, emphasizing the natural grain while creating a distinctive depth of color and texture. The result is a finish with an unmistakable visual presence—equally at home in a sophisticated modern setting or a more natural, rustic environment.
Every tub has its own subtle variations.
Because each piece is handcrafted from natural wood, no two tubs are perfectly identical. Slight variations in grain, color, and dimensions are part of what makes your plunge uniquely yours.
Designed for the Discerning Buyer
A cold plunge should do more than provide cold water.
It should look exceptional in the space you've created.
With its substantial Redwood construction and distinctive Shou Sugi Ban finish, this tub brings the aesthetic of handcrafted furniture to the world of home wellness.
Place it in a dedicated wellness room, home gym, spa area, covered outdoor space, or wherever you have created your personal environment for recovery and relaxation.
Your wellness equipment doesn't have to be hidden away. It can be part of the design.
A Simpler Way to Experience Cold-Water Immersion
The system is designed to make incorporating cold-water immersion into your routine straightforward.
The plunge arrives fully set up, eliminating the complexity associated with building a system from individual components. It operates using a standard 110V electrical connection, making it practical for many residential environments.
The integrated chiller provides temperature control, while the water-treatment system helps maintain the water between uses.
The result is a dedicated cold-plunge experience that's designed around convenience as well as performance.
Precision Temperature Control
Set the water temperature to your preferred level using the integrated temperature-control system.
The 1/4 HP chiller features a 950 GPH pump, providing the circulation and cooling capacity needed for the plunge system.
Whether you're establishing a consistent morning ritual or incorporating cold immersion into your post-workout routine, temperature control allows you to create a repeatable experience.
Ozone Water Treatment
The plunge incorporates an ozonation water-treatment system that introduces ozone into the water as part of the sanitation process.
Ozone is a powerful oxidizing agent used in water-treatment applications to help address contaminants and organic compounds.
The system is designed to reduce reliance on traditional chemical treatment while providing an efficient approach to water maintenance.
For optimal water quality, regular maintenance and filter replacement remain important.
Built for Everyday Wellness
With approximately 60 gallons of water capacity, the tub provides a substantial immersion experience while maintaining a footprint suitable for many residential wellness environments.
Water height can be adjusted according to personal preference and body displacement, allowing you to determine the level of immersion that feels most comfortable.
For many users, the water can reach above the shoulders, while the tub can also accommodate a higher immersion level toward the neck and chin.
Thoughtful Engineering. Beautiful Materials.
Underneath the handcrafted exterior is a purpose-built cold-plunge system designed for residential use.
Chiller: 1/4 HP
Pump: 950 GPH
Water Treatment: Ozonator / O3
Power: Approximately 350–500 watts
Electrical: 110V standard household connection
Recommended Outlet: GFCI or properly grounded outlet as required by applicable local codes
Water Capacity: Approximately 60 gallons
The system is designed to deliver sophisticated cold-plunge functionality without demanding a dedicated high-voltage electrical installation.
Maintenance Made Manageable
A luxury wellness product should fit into your lifestyle.
The filtration system requires periodic filter replacement, typically approximately every 1–2 months, depending on frequency of use and water conditions.
The chiller and water-treatment components are designed to simplify ongoing servicing and maintenance.
Regular care helps protect the system, maintain water quality, and preserve the experience you've invested in.
Made for Your Space
Every tub is individually handcrafted, so dimensions can vary slightly.
Approximate Dimensions:
64" L × 34" W × 35" H
Approximate Weight:
400 lbs
Tub Compartment:
36" L × 24" W × 30" H
Water Capacity:
Approximately 60 gallons
Due to the size and weight of the finished tub, plan your delivery path carefully. A minimum of 33 inches of clearance through doors and passageways is required to move the tub into its final location.
Subtle dimensional variations of up to approximately 1/4 inch in length and width may occur due to the handcrafted nature of the product.
A Wellness Investment Made to Be Seen
The most meaningful wellness spaces aren't built around equipment alone. They're built around rituals.
A quiet morning.
A post-training reset.
A moment to step away from the noise of the day.
The ritual of cold water.
And a beautifully crafted object that makes you want to return to that ritual again and again.
This handcrafted Redwood cold plunge brings together traditional Japanese wood craftsmanship, modern temperature-control technology, ozone water treatment, and timeless natural materials to create something considerably more personal than an ordinary cold plunge.
Crafted in San Diego. Made for Your Wellness Space.
Every tub begins with carefully selected materials and hands-on craftsmanship.
From the first board selected to the final Shou Sugi Ban finish, attention is given to the details that distinguish a handcrafted product from something produced for the masses.
The result is a cold plunge with character—designed for the buyer who expects their wellness products to perform beautifully and look beautiful doing it.
Product Highlights
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Handcrafted in San Diego
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Carefully selected Redwood construction
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Traditional Shou Sugi Ban charred wood finish
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Individually crafted for a distinctive appearance
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Approximately 60-gallon water capacity
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Integrated 1/4 HP chiller
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950 GPH circulation pump
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Adjustable temperature control
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Integrated ozone water-treatment system
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Approximately 350–500 watts
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Standard 110V electrical connection
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Designed for residential cold-plunge use
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Approximately 400 lbs
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Approximate dimensions: 64" L × 34" W × 35" H
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Typical production time: approximately 2 weeks
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Shipping time varies by destination
Your Private Cold-Plunge Ritual Starts Here
You don't need a commercial spa to create a sophisticated wellness environment.
Bring the experience home.
With its handcrafted Redwood construction, distinctive Shou Sugi Ban finish, integrated cooling system, and thoughtfully designed water treatment, this cold plunge is created for people who see wellness as more than a trend.
It is a ritual.
It is a space.
It is an investment in how you choose to live.