Theradia Wellness
SaunaLife Model S1B 1-Person Hot & Cold Plunge Tub – Black Finish
SaunaLife Model S1B 1-Person Hot & Cold Plunge Tub – Black Finish
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SaunaLife Model S1B 1-Person Hot & Cold Immersion Tub – Elegant Black
Revive and Rejuvenate Your Recovery
Plunge into the tranquility of the SaunaLife Model S1B 1-Person Hot & Cold Immersion Tub in a sleek black Thermo-Pine finish — the perfect addition to your home wellness space. Whether used for post-workout muscle recovery, as a cold plunge after sauna sessions, or for daily hydrotherapy, the S1B delivers spa-quality recovery in a compact, single-person design.
Cold Plunge or Hot Immersion – Tailor Your Therapy
Experience the benefits of cold water immersion to reduce inflammation, boost circulation, and speed up recovery, or indulge in hot-water therapy to relax sore muscles and melt away stress. The S1B is designed for versatile use, allowing you to customize your wellness routine at home with ease.
Compact, Durable & Ready to Use
Expertly crafted with enhanced black Thermo-Pine wood, the S1B offers superior durability and thermal performance, lasting up to 2X longer than cedar. Its ergonomic fiberglass interior ensures maximum comfort, while the 124-gallon capacity provides full-body immersion. The tub arrives fully assembled, making installation quick and hassle-free.
- Black Thermo-Pine exterior – up to 2X longer lifespan than cedar
- 124-gallon capacity – ideal for single-user immersion
- Contoured fiberglass interior – designed for superior comfort
- Fully assembled – ready for immediate use
- Matching black Thermo-Pine steps – for easy access
- Comfortably fits 1 bather
Recover Like a Pro
Whether you’re an athlete enhancing recovery, a sauna enthusiast seeking contrast therapy, or simply prioritizing wellness, the SaunaLife Model S1B transforms your space into a professional-grade hydrotherapy sanctuary.
Designed and handcrafted in Northern Europe, the S1B blends timeless Scandinavian design with exceptional performance and durability.
Specifications
- Exterior Dimensions: 41.3"H (105 cm) × 40" Diameter (102 cm)
- Interior Dimensions: 34.4" Diameter (87 cm) × 36" Deep (91 cm)
- Capacity: ~124 gallons
- Construction: Thermowood walls 0.7" (1.7 cm)
- Foundation Beams: 3.94" × 3.94" (10 cm × 10 cm)
- Fiberglass Insert: Grey, ergonomic, contoured
- Includes: Round deluxe stairs, drainage (1" / 3 cm), chiller connections (3/4" NPT)
Key Features
- Premium 1-person hot & cold immersion tub
- Black Thermo-Pine construction – lasts up to 2X longer than cedar
- Ergonomic fiberglass interior for enhanced comfort
- 124-gallon capacity – perfect for full-body immersion
- Pre-assembled and ready to use
- Designed and handcrafted in Northern Europe





- Description
- SaunaLife Warranty
- SaunaLife Shipping
SaunaLife Model S1B 1-Person Hot & Cold Immersion Tub – Elegant Black
Revive and Rejuvenate Your Recovery
Plunge into the tranquility of the SaunaLife Model S1B 1-Person Hot & Cold Immersion Tub in a sleek black Thermo-Pine finish — the perfect addition to your home wellness space. Whether used for post-workout muscle recovery, as a cold plunge after sauna sessions, or for daily hydrotherapy, the S1B delivers spa-quality recovery in a compact, single-person design.
Cold Plunge or Hot Immersion – Tailor Your Therapy
Experience the benefits of cold water immersion to reduce inflammation, boost circulation, and speed up recovery, or indulge in hot-water therapy to relax sore muscles and melt away stress. The S1B is designed for versatile use, allowing you to customize your wellness routine at home with ease.
Compact, Durable & Ready to Use
Expertly crafted with enhanced black Thermo-Pine wood, the S1B offers superior durability and thermal performance, lasting up to 2X longer than cedar. Its ergonomic fiberglass interior ensures maximum comfort, while the 124-gallon capacity provides full-body immersion. The tub arrives fully assembled, making installation quick and hassle-free.
- Black Thermo-Pine exterior – up to 2X longer lifespan than cedar
- 124-gallon capacity – ideal for single-user immersion
- Contoured fiberglass interior – designed for superior comfort
- Fully assembled – ready for immediate use
- Matching black Thermo-Pine steps – for easy access
- Comfortably fits 1 bather
Recover Like a Pro
Whether you’re an athlete enhancing recovery, a sauna enthusiast seeking contrast therapy, or simply prioritizing wellness, the SaunaLife Model S1B transforms your space into a professional-grade hydrotherapy sanctuary.
Designed and handcrafted in Northern Europe, the S1B blends timeless Scandinavian design with exceptional performance and durability.
Specifications
- Exterior Dimensions: 41.3"H (105 cm) × 40" Diameter (102 cm)
- Interior Dimensions: 34.4" Diameter (87 cm) × 36" Deep (91 cm)
- Capacity: ~124 gallons
- Construction: Thermowood walls 0.7" (1.7 cm)
- Foundation Beams: 3.94" × 3.94" (10 cm × 10 cm)
- Fiberglass Insert: Grey, ergonomic, contoured
- Includes: Round deluxe stairs, drainage (1" / 3 cm), chiller connections (3/4" NPT)
Key Features
- Premium 1-person hot & cold immersion tub
- Black Thermo-Pine construction – lasts up to 2X longer than cedar
- Ergonomic fiberglass interior for enhanced comfort
- 124-gallon capacity – perfect for full-body immersion
- Pre-assembled and ready to use
- Designed and handcrafted in Northern Europe
SAUNA LIFE SAUNA LIMITED LIFETIME WARRANTY
Sauna Life extends this Limited Warranty solely to the original retail consumer purchaser of any Sauna Life sauna purchased from one of its authorized resellers.
LIMITED LIFETIME SAUNA WARRANTY
Sauna Life warrants that the Sauna Life sauna shall be free from defects in workmanship under normal conditions of use and service for the lifetime of the sauna for residential applications after delivery to the original retail purchaser. This warranty is limited to making good any factory assembled component which in the judgment of Sauna Life is deemed defective in workmanship. The warranty does not cover normal material wear, natural weathering of the lumber, or installation or delivery of components and applies only to the original retail purchaser.
WARRANTY PERFORMANCE
For any warranty service, Sauna Life reserves the right to choose, at its option, repair of the problem or a replacement of the defective part. Sauna Life reserves the right to substitute a part or component of
equivalent value, either new or factory reconditioned, and any such repair or replacement shall assume as its warranty only the remaining portion of the warranty on the original product. In the event Sauna Life chooses to repair any malfunction or defect covered by this warranty, a return authorization will be is- sued, and the component will be returned prepaid freight to Sauna Life for repair of the defect. Sauna Life will then ship the component back the original retail purchaser upon completion of the repair. Prior to any return, contact Sauna Life at: Sauna Life, 511 Glenn Avenue, Wheeling, Illinois 60090, telephone number: (800) 957-2862, for packaging and shipping instructions and a return authorization number. In addition, Sauna Life will require photographs of any defect and reserves the right to inspect or designate an agent to inspect any part that is claimed to be defective and covered by this warranty. Labor charges and related expenses for removal, installation, or replacement of the sauna or its components are not covered under this warranty. Normal wear and tear, cosmetic issues or changes to individual pieces of lumber due to nat- ural aging and weathering are not covered. Sauna heaters and added components are not covered by this warranty.
ACTS INVALIDATING WARRANTY
This warranty is void if the Sauna Life sauna has been subject to alteration, misuse or abuse, commercial use, or if any repairs on the sauna are attempted by anyone other than an authorized representative of Sauna Life. Alteration shall include, but is not limited to, deviation from the original assembly instructions, component change, or the addition of any non-approved device or heating system, which contributes to a component or unit failure, or unsafe operating system. Use of the sauna in an application for which it is not designed will void this warranty. This includes, but is not limited to, damage caused by operation above safe sauna operating temperatures, damage caused by added components, damage to the sauna’s surface caused by harsh chemicals, damage caused by movement of the product, and damage caused by acts of God.
DISCLAIMERS
Except as expressly provided above, Sauna Life makes no other representation or warranty, express or im- plied, either in fact or operation of law, statute, or otherwise, and Sauna Life specifically disclaims any and all implied or statutory warranties, including warranties or merchantability and of fitness for a particular purpose. Sauna Life shall not be liable for loss of use of the Sauna Life sauna or other incidental or conse- quential costs, expenses, or damage, which may include but are not limited to, the removal of or reinstal- lation of a wall, deck or other fixture, water leakage, costs of shipping or packaging, applicable taxes, or the payment of any costs or expenses of disassembly, removal, or reinstallation of the product or any part. Your rights may vary from state to state. Under no circumstances shall Sauna Life or its representatives be held liable for injury to any person or damage to any property, however arising, even if caused by the Sau- na Life Sauna or its representatives’ negligence. No distributor, salesperson, dealer, retailer, or other rep- resentative of Sauna Life has the authority to alter or change these warranties either orally or in writing.
Flat Rate Freight: FREE flat rate shipping to the contiguous United States. $1,250 for Canada. Note: On rare occasions, remote or complex delivery areas may not qualify for these rates.
About This Delivery: The weight and packaging of this handcrafted tub requires delivery by special appointment. It arrives on a wooden pallet encased in wood for solid protection. The driver is responsible for “curbside delivery only” and will lower the item to ground level. Prior to shipping this product, we often contact customers to share shipment details and discuss any extenuating delivery circumstances that may complicate or cause additional delivery expenses. Our goal is to ensure your project’s success.