The Oasis System

$6,239.00 SGD

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: Elite (2.0HP)

Gen 5: Elite (2.0HP) Gen 5: Elite (2.0HP) x2, bundle saving Tub only (no engine)

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.

Quantity:

Delivered, installed and commissioned by our own team. Included for mainland Singapore.

Serviced by us, in Singapore, for the life of the product. We also deliver worldwide, with delivery included in the price. Delivery times by country

In stock

The Oasis System communal hot and cold plunge, TUNDRA Singapore

Tundra Ice Bath The Oasis System

$6,239.00 SGD

The Oasis System

The Oasis System is built for gyms, teams, and social wellness. We have paired our largest reinforced tub (5 to 8 person capacity) with the commercial-grade power of the Borealis™ Elite 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 to 8 users comfortably. Its strengthened wall structure and improved insulation ensure the tub remains rock-solid and thermally efficient, even at full capacity.

One or Two Elite Engines: Designed for high-traffic environments. The OASIS has two connection sets, so it runs on one Borealis™ Elite or two. A second Elite doubles the cooling power and filtration speed, holding precise temperatures (3°C to 42°C) through back-to-back sessions. The two-Elite bundle costs less than buying the tub and two units separately: in Singapore you save S$939.

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 the Oasis a firmer, more rigid feel, improving stability and long-term durability indoors and outdoors.

Clear, ozone-sanitised water inside a stainless steel plunge

Advanced Ozone Sterilization

Commercial grade Ozone sanitation system keeps water clean and sanitised 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.

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 to 2 Days
In-stock units ship immediately.
APAC: 14 to 18 days
Europe and the UK: 30 to 40 days (Ocean Freight)
USA and Canada: 30 to 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 to 2 minutes).
Connect the chiller to the tub using the two provided hoses. With two Elite units, each one connects to its own set of ports on the rear diagonal sides.
Fill the tub with water using the included 10m hose.
Plug the chiller into a grounded socket, set your temperature, and plunge. With two Elite units, use two sockets on separate circuits.

Delivered worldwide. Delivery to your door is included in the price in every country we ship to. Hong Kong, Asia Pacific and the Middle East: 14 to 18 days. Europe and the UK: 30 to 40 days by sea. USA and Canada: 30 to 45 days by sea. Rest of the world: 30 to 50 days. We ship duties paid (DDP) wherever our freight partners can. Where import duties or taxes are payable on arrival, we confirm the amount with you in writing before your order ships. Outside Singapore and Hong Kong, installation is not included. Delivery times by country: tundra.health/pages/shipping.

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

How it feels

Wide awake

A rush of alertness within seconds of getting in.

Clear head

A calm, focused feeling once you step out.

Lighter legs

Tired muscles feel fresher after hard training.

Built resilience

Each plunge is a small win that carries into the day.

What the research says

9

Randomised trials in a meta-analysis that found cold water immersion after exercise reduced muscle soreness compared with passive rest.¹

11-15 °C

Water temperature that gave the best soreness results in these trials, with 11 to 15 minutes in the water.¹

5 min

In 20 °C water raised positive mood scores in a study of 33 adults.²

1. Machado AF et al. Sports Medicine, 2016. Meta-analysis of 9 randomised trials, 169 participants.
2. Yankouskaya A et al. Biology, 2023. 33 adults.

How it feels describes experiences people commonly report. These are personal experiences, not scientifically established effects, and they vary from person to person.

TUNDRA products are wellness equipment, not medical devices. If you are pregnant or have a heart, circulatory or other medical condition, speak to your doctor first. Full references on our science page.

Product specification

Dimensions

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

Borealis™ Heater & Chiller:
- Gen 5: Elite (2.0HP): W x D x H: 67.7 x 42.3 x 62.6 cm per unit

Free area, tub and units:
- One Elite: 321 x 303 cm
- Elite x2: 428 x 303 cm

Water Capacity

1,100 L

Temperature Range

3°C to 42°C (Cooling + Heating)

Compressor / Heater & Chiller:

Gen 5: Elite (2.0HP), per unit:
- 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 to 3.9°C per hour
Heating: ~3.8 to 4.5°C per hour
From 30°C tap water to 5°C: about 6.4 to 8.1 hours
From 30°C to 40°C: about 2.2 to 2.6 hours

Gen 5: Elite (2.0HP) x2
Cooling: ~6.2 to 7.8°C per hour
Heating: ~7.6 to 9.0°C per hour
From 30°C tap water to 5°C: roughly half, about 3.2 to 4.0 hours
From 30°C to 40°C: about 1.1 to 1.3 hours

The Oasis is supplied with the Elite only. For gyms, teams and back-to-back group sessions, choose two Elite units.

About these values:

These figures are realistic estimates for a 1,100 L tub running continuously with the cover on. 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.

Technical guide

Oasis System: technical data, planning and owner's guide

Issue D, 20 October 2026. 32 pages. PDF, 3.1 MB.

The Oasis on the Borealis Elite, as one or two units. Dimensions, space and site planning, delivery and packing, connections, power for two units and full technical data. Then safety, set-up and first start, inflating with the hand pump and the air valve, touch panel and app, care, draining, deflating and storage, troubleshooting and warranty.

For architects, interior designers and installers. Verify all dimensions on site.

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 deliver worldwide from Singapore, and delivery to your door is included in the price shown for your country. We ship duties paid (DDP) wherever our freight partners can. Where import duties or taxes are payable on arrival, we confirm the amount with you in writing before your order ships. Delivery times by country are on tundra.health/pages/shipping.

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 and the UK: 30–40 days
Shipped via ocean freight. Air freight (5–9 days) is available upon request for an additional fee.
USA and Canada: 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.

Delivered worldwide. Delivery to your door is included in the price in every country we ship to. Hong Kong, Asia Pacific and the Middle East: 14 to 18 days. Europe and the UK: 30 to 40 days by sea. USA and Canada: 30 to 45 days by sea. Rest of the world: 30 to 50 days. We ship duties paid (DDP) wherever our freight partners can. Where import duties or taxes are payable on arrival, we confirm the amount with you in writing before your order ships. Outside Singapore and Hong Kong, installation is not included. Delivery times by country: tundra.health/pages/shipping.

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 to 240 V

• North America & Japan: 100 to 127 V

Your unit will be shipped with the correct voltage and plug type for your country.
With one Elite, plug it into a normal grounded household socket, no special wiring required. A circuit not shared with other large loads is recommended.

With two Elite units: each unit needs its own grounded socket on its own circuit. Two Elite units must not share one circuit. If your site has only one circuit near the tub, an electrician can add a second before installation.

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™:
Gen 5 Elite (2.0HP): 40 KG per unit, 80 KG with two units

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

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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

Product specification

FAQ

Global Delivery Timelines

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