Rectangular rigid cold plunge tub with internal chiller unit
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BlueCube

C1

Standard XL
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The BlueCube C1 is a residential-focused cold plunge tub built with a 316 stainless steel interior, a 1.5HP commercial chiller, and a Line-X weatherproof exterior shell.

Tub structure
Rigid
Chiller included
Yes
Hot tub mode
Yes

Description

The BlueCube C1 is constructed with a 14-gauge 316 stainless steel tub, designed for optimal comfort and body alignment during immersion. Built on a Line-X weatherproof frame, the C1 is suitable for both indoor and outdoor installations, offering enduring performance under various conditions.

American designed, engineered and handcrafted, the C1 focuses on longevity and consistent performance.

The BlueCube C1 is engineered for consistent cooling, superior filtration and long-term endurance thanks to its robust construction and high-grade components.

It's residential-focused, but can be upgraded for commercial use.

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Details & features

Features

Chiller included
Cover lid included
Included Cover lid is insulated
Hot tub mode
Suitable for outdoor use

Temperature

Minimum set temperature (°F)
37 °F
Minimum set temperature (°C)
3 °C
Maximum heating temperature (°F)
104 °F
Maximum heating temperature (°C)
40 °C

Dimensions & weight

Tub outer length (mm)
2350 mm
Tub outer width (mm)
953 mm
Tub outer height (mm)
724 mm
Tub outer dimensions LxWxH (inches)
92.5 × 37.5 × 28.5
Tub internal dimensions LxWxH (inches)
60 × 24 × 21.25

Power & performance

Power (hp)
1.5 hp
Cooling power (BTU/hr)
13600 BTU/hr
Supports 110-120V / 60Hz

Details filtering

Main filter included
Main filter micron rating
20 microns

Details sanitation

Ozone (O₃) sanitation

General

Plunging orientation
Horizontal / Bathtub
Tub structure type
Rigid
Chiller location
Built-in
Chilling type
Electric chiller
Commercial use approved
Default warranty (years)
3 years
Active water circulation
Tub basin main material
Stainless steel
Tub basin steel grade
316 (marine-grade)

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Frequently asked questions

Yes — the C1 includes a hot tub mode, allowing you to switch from cold immersion to warm water soaking heating water up to 104 °F (40 °C). This makes it a dual-purpose unit suitable for both cold therapy and relaxation or contrast therapy protocols.

Yes — the C1 is a complete system that includes a built-in chiller. No separate cooling unit is required; you can start cold therapy as soon as it is set up and filled.

The C1 is a horizontal cold plunge designed for seated or reclined immersion, similar in form to a bathtub. This is the most common orientation for home cold therapy setups.

The tub basin of the C1 is made from stainless steel.

Stainless steel offers excellent hygiene, durability, and resistance to corrosion, making it a popular choice for premium cold plunge tubs.

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Rectangular rigid cold plunge tub with internal chiller unit
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Rectangular rigid cold plunge tub with external chiller unit
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