The TUNDRA Oasis System, a large communal inflatable cold plunge with the Borealis heater and chiller

The TUNDRA Oasis System, a large communal inflatable cold plunge with the Borealis heater and chiller — view 2

The TUNDRA Yukon System, a portable inflatable cold plunge with the Borealis heater and chiller — view 2

The TUNDRA Oasis System, a large communal inflatable cold plunge with the Borealis heater and chiller — view 4

The TUNDRA Oasis System, a large communal inflatable cold plunge with the Borealis heater and chiller — view 5

The TUNDRA Oasis System, a large communal inflatable cold plunge with the Borealis heater and chiller — view 6

The TUNDRA Oasis System, a large communal inflatable cold plunge with the Borealis heater and chiller — view 7

The TUNDRA Oasis System, a large communal inflatable cold plunge with the Borealis heater and chiller — view 8

Tundra Ice Bath

The Oasis System

Q: What power outlet do I need?

• Most markets (EU, SG, AU, UK): 220–240V • North America & Japan: 100–127V Your unit will be shipped with the correct voltage and plug type for your country. Simply plug it into a normal household outlet – no special wiring required

Q: How much does it weigh when filled?

Oasis Tub : Tub weight: 23 KG, Water Capacity: 1,100 KG, Total Weight: 1,123 KG Borealis™: Regular: 35 KG Pro: 40 KG

$4,940.00 USD

A large-format inflatable cold plunge built for groups paired with the Borealis™ Heater & Chiller. Durable, portable, and designed for consistent cooling and heating in any environment.

New to cold plunging or comparing setups? Read the Ice Bath & Cold Plunge Buyer's Guide →

Care & maintenance: Your system runs on the Borealis™ Gen 5 — see the full Care, Maintenance & User Guide →

Borealis™ (Select Your Engine): Gen 5: Pro (1.0HP)

Gen 5: Pro (1.0HP) Gen 5: Elite (2.0HP)

Tub: GEN 2 vs. GEN 3: What's the difference?

Gen 3
Our latest-generation design in dark grey. A fully re-engineered tub with a reinforced heavy-duty shell, optimized Smart-Flow circulation for faster cooling, and storm-ready straps for secure outdoor use. Built for long-term performance and everyday setups.

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Tundra Ice Bath The Oasis System

$4,940.00 USD

The Oasis System

The Oasis System is built for gyms, teams, and social wellness. We have paired our largest reinforced tub (5–8 person capacity) with the commercial-grade power of the Borealis™ engine to create a recovery hub that stays cold, clean, and stable — no matter how many people take the plunge.

Key System Benefits:

Massive Capacity & Reinforced Stability: Engineered for the demands of shared use. The OASIS accommodates 5–8 users comfortably. Its strengthened wall structure and improved insulation ensure the tub remains rock-solid and thermally efficient, even at full capacity.

Dual-System Performance Capability: Designed for high-traffic environments. The OASIS features specific ports allowing seamless pairing with up to two Borealis™ cooling units. This delivers double the cooling power and filtration speed, ensuring precise temperatures (3°C–42°C) are maintained even during back-to-back sessions.

Commercial-Grade Hygiene: With groups, water quality is critical. The system’s continuous circulation combined with Ozone sterilization and 20-micron filtration ensures that the large water volume is turned over rapidly and kept crystal clear.

Optimized Maintenance & Setup: Managing a large tub shouldn't be hard work. We redesigned the drainage layout and simplified the hose routing, making setup quick and water changes efficient for studio owners and event organizers.

Key Benefits

Heating & Cooling

Delivers precise cooling down to 3°C and heating up to 42°C with the integrated Borealis™ system.

Stronger, Reinforced Drop-Stitch Walls

The new military-grade multi-layer drop-stitch fabric gives Yukon 3 a firmer, more rigid feel, improving stability and long-term durability indoors and outdoors.

Advanced Ozone Sterilization

Commercial grade Ozone sanitation system keeps water clean and bacteria-free for safe and hygienic use.

Efficient Filtration

Features a 20-Micron filter cartridge system for clean, clear water and reduced maintenance.

Touch Panel with Wi-Fi and Smart App Control

Adjust temperature, modes, and schedules seamlessly through the Smart Life app.

Community & Connection

Perfect for shared wellness experiences, the Oasis is designed to bring people together. Its open layout fosters connection, resilience, and fun, turning a solitary recovery routine into a powerful group social event.

Transform individual hot & cold therapy into the ultimate communal wellness experience.

Recovery is Better Together.

Everything you need for immediate setup.

What's Included

The Oasis Hot & Cold Tub

• Lena inflatable hot & cold plunge tub
• Insulated tub cover
• Electric Air Pump
• Drainage system
• 10m Hose with quick-connect fittings (for filling & drainage)
• Backpack

The Borealis™ Heater & Chiller

Borealis™ Heater & Chiller (Your selected Gen 5 model)
2x Water Circulation Pipes (Inlet & Outlet with fittings)
3x Filter Cartridges (20-Micron for crystal clear water)

Essentials Kit

Power Cable
Maintenance Tools & Accessories
User Manuals

• Lena inflatable hot & cold plunge tub
• Insulated tub cover
• Electric Air Pump
• Drainage system
• 10m Hose with quick-connect fittings (for filling & drainage)
• Backpack

Delivery & Installation

Delivery & Setup: Fast & Flexible

Experience the TUNDRA difference in record time. Our inflatable series is designed for portability and speed — perfect for getting your cold therapy started immediately.

Global Delivery Timelines

We handle all logistics to get you plunging as fast as possible.

Singapore (Local): 1–2 Days
In-stock units ship immediately.
APAC: 14–18 days
Europe: 30–40 days (Ocean Freight)
USA: 30–45 days (Ocean Freight)

Note: For all orders, our delivery partner will contact you directly to confirm access details and schedule your specific drop-off time.

Installation: Set Up in 15 Minutes

Your system arrives in compact, portable boxes. No tools required — everything you need is included.

Inflate the tub using the provided hand pump (approx. 1-2 minutes).
Connect the Chiller to the Tub using the two provided hoses.
Fill the tub with water using the included 10m hose.
Plug the Chiller into a standard power socket, set your temperature, and plunge.

Maintenance & Support

Water Care

• Add mild sanitizers (non-chlorine, non-bromine) to keep the water clean for several weeks
• Clean the skimmer basket weekly to remove leaves, hair, and debris
• Replace the filter cartridge every 3–4 weeks depending on usage
• Change the water every 3-4 weeks for optimal hygiene, depending on hygiene and frequency of use

General Maintenance

• Wipe the tub occasionally to remove body oils or sunscreen residue
• Ensure there is good airflow around the Borealis™ unit
• Avoid using extension cables

Support

• All units include 1-year warranty
• Local in-house support team available in Singapore; in other markets we work with trusted partners and service providers

For more details please check: Installation, Maintenance & Support

Return to Yourself

20%

reduction in muscle soreness

30%

faster recovery

300%

increase in norepinephrine

Product specification

Dimensions

The Oasis Tub:
- One size: LxWxH: 200 x 200 x 70 cm
- Cover thickness: 10 cm

Borealis™ Heater & Chiller:
- Gen 5: Pro (1.0HP): LxWxH: 53 x 38 x 57
- Gen 5: Elite (2.0HP): LxWxH: 68 x 49 x 75

Water Capacity

1,100 L

Temperature Range

3°C to 42°C (Cooling + Heating)

Compressor / Heater & Chiller:

Gen 5: Pro (1.0HP):
- Compressor power: 900 W
- Cooling capacity: 2,450 W
- Heating capacity: 3,800 W
- Refrigerant: R410A (360 g)

Gen 5: Elite (2.0HP):
- Compressor power: 1,660 W
- Cooling capacity: 5,000 W
- Heating capacity: 5,800 W
- Refrigerant: R410A (480 g)

Cooling/Heating Performance

Gen 5: Elite (2.0HP)
Cooling: ~3.1-3.9°C per hour
Heating: ~3.8-4.5°C per hour

About these values:

These figures are realistic estimates for a 1,100 L tub running continuously under typical conditions. Actual cooling and heating performance may vary depending on ambient temperature, sun exposure, wind, insulation quality, use of a cover, plumbing length, circulation rate, and heat introduced by users.

FAQ

Can I use it indoors and outdoors?

Yes, it’s fully outdoor-ready. The tub is made from weatherproof materials, and the included cover helps keep the water insulated and protected from dirt and debris.

Do you ship overseas?

Yes. We ship internationally. Delivery times vary depending on your country and customs clearance. You will receive shipping information once your unit ships.

How long does delivery take?

Global Delivery Timelines

We handle all logistics, customs clearance, and freight coordination. Timelines vary by region:

Singapore:
1–2 days.
APAC: 14–18 days
Typically faster due to proximity to our manufacturing hub.
Europe: 30–40 days
Shipped via ocean freight. Air freight (5–9 days) is available upon request for an additional fee.
USA: 30–45 days
Standard ocean freight to your doorstep. Timeline depends on coast (West vs. East) and customs processing.

Note: Our team will personally contact you to confirm access details and schedule your specific delivery window once the unit clears customs.

Does it require professional installation?

No professional installation is required. Simply place it on a flat surface, inflate it, and connect it to your Borealis™ heater and chiller using the provided hoses. Once connected, fill it with water and set your desired temperature.

What if I didn't book a setup service?

If setup service is not booked, delivery is to the doorstep only.

Bringing the unit into position may require 1-2 people due to the weight and size, but the actual setup and installation are very simple — place the unit and inflate it with the provided pump, connect the included drainage valve, fill it, and plug it in.

Please note that setup services are not available in every country.

To check availability in your area, please contact support@tundra.health.

What power outlet do I need?

• Most markets (EU, SG, AU, UK): 220–240V

• North America & Japan: 100–127V

Your unit will be shipped with the correct voltage and plug type for your country.
Simply plug it into a normal household outlet – no special wiring required

Should I keep the unit running all the time?

Yes, we recommend keeping it running.

Circulation, filtration, and sanitation are only active while the Borealis™ system is operating. Once the water reaches your set temperature, the system automatically switches into energy-saving mode and maintains the temperature with minimal power consumption.

How much does it weigh when filled?

Oasis Tub:
Tub weight: 23 KG, Water Capacity: 1,100 KG, Total Weight: 1,123 KG

Borealis™:
Regular: 35 KG
Pro: 40 KG

Our customer support is available Monday to Friday, 9am–6pm SGT and Saturday, 9am-12pm SGT.Average answer time: within 24h

Email us

Contact TUNDRA

From product questions and services to bespoke projects and showroom visits, our team is ready to assist.
Share your enquiry below and we’ll help you find the right solution for your space, goals, and recovery routine.

The Oasis System

Key Benefits

Delivery & Setup: Fast & Flexible

Global Delivery Timelines

Installation: Set Up in 15 Minutes

20%

reduction in muscle soreness

30%

faster recovery

300%

increase in norepinephrine

Product specification

FAQ

Global Delivery Timelines

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Contact TUNDRA