Circular rigid cold plunge tub with external chiller unit and steps
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Polar Monkeys

The Barrel

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The Barrel by Plunge provides full-body immersion in a compact design constructed from 316 marine-grade stainless steel.

Tub structure
Rigid
Chiller included
Yes
Hot tub mode
Yes

Description

The Barrel delivers complete immersion in a compact footprint suitable for patios, balconies, or home gyms. Engineered with 316 marine-grade stainless steel and a fully insulated tub, it supports upright posture and accommodates both indoor and outdoor placement. Powered by the ChillX chiller, it offers cooling and heating capabilities with Wi-Fi app control for scheduling, alongside automatic ozone filtration for water maintenance.

Included accessories comprise an insulated cover, filters, phone holder, hose filter, skimmer net, and custom steps. The self-contained system requires no plumbing and features built-in drainage.

Comes with 4 finishes & colors:

  • Cyber Barrel Black
  • Cyber Barrel Silver
  • Star Treatment 2.0 Wood
  • Star Treatment 2.0 Grey

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)
32 °F
Minimum set temperature (°C)
0 °C
Maximum heating temperature (°F)
107 °F
Maximum heating temperature (°C)
42 °C

Dimensions & weight

Dry weight (lbs)
156 lbs
Dry weight (kg)
0 kg
Capacity (liters)
492 L
Capacity (gallons)
0 gal
Tub outer length (inches)
34 inches
Tub outer width (inches)
34 inches
Tub outer height (inches)
41.50 inches
Tub outer dimensions LxWxH (inches)
49.25 x 33.5 x 41.5
Tub outer dimensions LxWxH (mm)
1251 x 851 x 1054
Total installation footprint LxWxH (inches)
71 x 34.25 x 24

Power & performance

Supports 110-120V / 60Hz

Details filtering

Main filter micron rating
20 microns

Details sanitation

Ozone (O₃) sanitation

General

Plunging orientation
Vertical
Tub structure type
Rigid
Chiller location
External
Chilling type
Electric chiller
Commercial use approved
Default warranty (years)
2 years
Adjustable set-point
Tub basin main material
Stainless steel
Tub basin steel grade
316 (marine-grade)

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Frequently asked questions

Yes — the The Barrel includes a hot tub mode, allowing you to switch from cold immersion to warm water soaking heating water up to 107 °F (41 °C). This makes it a dual-purpose unit suitable for both cold therapy and relaxation or contrast therapy protocols.

Yes — the The Barrel 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 The Barrel is a vertical cold plunge designed for standing immersion. This orientation maximises space efficiency and provides deep water coverage from feet to shoulders.

The tub basin of the The Barrel 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.

Other cold plunges from Polar Monkeys

Rectangular rigid cold plunge tub with oval ends, tapered ends, and external chiller unit
Illustrative image
Rectangular rigid cold plunge tub with oval ends, tapered ends, and external chiller unit
Illustrative image
Circular rigid cold plunge tub with external chiller unit
Illustrative image
Rectangular rigid cold plunge tub without chiller
Illustrative image