Skip to product information
All | order:1
All | order:2
All | order:3
Basalt Grey / Composite Brazilian Walnut
All
All
All
All
All
Composite Brazilian Walnut
4.9
Rated 4.9 out of 5 stars
148 Reviews

Cold Stoic 3.0

$11,699
The Cold Stoic 3.0 is our latest flagship product for the ultimate cold plunging experience. It features a bevy of advanced features and upgrades like dual temperature control, wifi, and more. The Cold Stoic 3.0 sets a new standard for performance, convenience, and durability in cold/hot water exposure.

Choose your Base Color

Choose your Breath Deck Color

Cover Options

5-year limited warranty • Ships in 4-6 weeks

Built for performance.

Engineered to last.

Specifications and dimensions

Specifications and dimensions

Dimensions

Outside 70” × 33” × 35”

Inside 40” × 25” × 31”

Connectivity

App connected

Touch screen

Weight

Empty ~350 lbs

Filled ~1,145 lbs

Water capacity

Filled 91–104 gallons

Max 134 gallons

Power

Cooling 518 watts

Heating 1013 watts

Noise level

58 dB from ~3 ft

67 dB from 2 in from rear

Dimensions Clearance space
Dimensions

Outside 70” × 33” × 35”

Inside 40” × 25” × 31”

Connectivity

App connected

Touch screen

Weight

Empty ~350 lbs

Filled ~1,145 lbs

Water capacity

Filled 91–104 gallons

Max 134 gallons

Power

Cooling 518 watts

Heating 1013 watts

Noise level

58 dB from ~3 ft

67 dB from 2 in from rear

The most reliable
cold plunge on the planet

5 year

Warranty

Built for years of reliable, backed by a comprehensive warranty for peace of mind.

Real support

5 star customer support rating

Human based, responsive support that's expert guidance when you need it most.

Handcrafted

In California

Handcrafted using real, premium materials and built with meticulous attention to detail.

Cold Stoic 3.0

Designed by you. Built by us.

Meterous Black / California Redwood

Plunge colors

Deck colors

Temperature 37°F – 104°F
Chiller Performance 0.5 HP
Filtration System Dual-stage + Ozone
Control Touchscreen + App
5-STAR REVIEWS

15,000+ TRUSTED CUSTOMERS

 Isaiah Mustafa

Cold Stoic 3.0

Love my Cold Stoic
 Isaiah Mustafa
LEWIS HOWES

Cold Stoic 3.0

Easy and convenient
LEWIS HOWES
Stephen Amell

Cold Stoic 3.0

Super reliable
Stephen Amell
5-STAR REVIEWS

15,000+ TRUSTED CUSTOMERS

 Isaiah Mustafa

Cold Stoic 3.0

Love my Cold Stoic
 Isaiah Mustafa
LEWIS HOWES

Cold Stoic 3.0

Easy and convenient
LEWIS HOWES
Stephen Amell

Cold Stoic 3.0

Super reliable
Stephen Amell

Demand more. From your recovery.

Most plunges cut corners on design, performance, and support. Renu doesn’t. If you’ve been hunting for a plunge that checks every box, this is the one.

Frequently Asked Questions

The Cold Stoic 3.0 is our flagship cold therapy system designed for the ultimate cold plunging experience. It combines advanced features for superior performance, convenience, and durability, suitable for both cold and hot water immersion therapies.

Still have questions?

Schedule a call with one of our specialists.

Talk To A Specialist
4.9
Rated 4.9 out of 5 stars
Based on 148 reviews
Total 5 star reviews: 138 Total 4 star reviews: 10 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend these products
Slide 1 selected
148 reviews
  • JC
    Jordan C.
    Verified Buyer
    Reviewing
    Cold Stoic 2.0
    I recommend this product
    Rated 5 out of 5 stars
    7 months ago
    Love my cold plunge.

    Easy to install and set up. Looks just like the pictures on the website. Sound of the chillier and pump are whisper quiet compared to some of the other cold plunges I have tried. Water stays clean and clear. Highly recommend this product.

  • MM
    Matt M.
    Verified Buyer
    Reviewing
    Cold Stoic 3.0
    I recommend this product
    Rated 5 out of 5 stars
    7 months ago
    Fantastic!

    Awesome cold tank, as advertised. Easy to operate and maintain and great customer service!

  • ER
    Earl R.
    Verified Buyer
    Reviewing
    Cold Stoic 3.0
    I recommend this product
    Rated 5 out of 5 stars
    9 months ago
    Very Happy Customer

    I bought a cheap cold plunge a couple years ago to see if I would really like it. I found out that the health and how you feel benefits exceeded my expectations. So when I remodeled my spa area I did a lot of research and came down to two. A buddy bought brand X and had a ton of issues the support was some of the worst customer service I had even seen. So I decided on RENU and super happy I did. It is very well built, runs quiet, easy to operate controls, the list goes on! We will see how support is in the future, what I can say 6 weeks into owning the RENU is I LOVE it, not the lowest cost but so far worth the small extra to own a quality product.

    RT Profile picture for Renu Therapy
    Renu Therapy
    9 months ago

    Hi Mike,

    Thanks for the awesome review and photos! We’re so glad you’re loving your RENU and that it’s been a great upgrade for your spa. We’re here anytime you need us! Welcome to the RENU family!

  • B
    Bill
    Verified Reviewer
    Reviewing
    Cold Stoic 2.0
    I recommend this product
    Rated 5 out of 5 stars
    10 months ago
    Five Stars Despite a Few Minor Quirks

    I’ve been using the Cold Stoic 2.0 for a while now and it's a game changer. Self-contained, no need to haul/buy ice, and easy to care for. Looks great beside my sauna, too!

    One thing that really improves convenience is having it plugged into a WEMO switch, so I can control it from my phone, making turning it on or off a lot easier, especially when I want to keep things quiet during a gathering.

    Speaking of that, there are a couple of minor downsides. The filter is a little awkward to place, and, as mentioned above, the unit runs at around 55 dB — like a dishwasher. Just annoying enough that I will turn it off if we’re hanging out nearby. Those are nitpicks, and in no way worthy of downgrading.

    It’s been a solid purchase and easily deserves 5 stars.

    If I could give 10 stars for customer service, I'd do it.

  • CR
    Chuck R.
    Verified Buyer
    Reviewing
    Cold Stoic 3.0
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    Life Changing

    The Cold Stoic 3.0 isn’t just a cold plunge — it’s a life upgrade. This thing has become my daily ritual, my reset button, and my secret weapon for mental clarity, stress resilience, and physical recovery.

    Form meets function in all the right ways. The design is sleek and solid — no cheap plastics or gimmicks. It looks sharp enough to show off and performs like a workhorse. Clean lines, easy to drain and maintain, and stays cold consistently. Like, ice-in-your-veins cold.

    What really makes it a game-changer though is how it fits seamlessly into my routine. Whether I’m doing Wim Hof breathing beforehand or just jumping in after a grind of a workday, the 3.0 delivers — every time. The cold hits, the mind clears, and the body snaps into gear. It’s better than coffee, therapy, and meditation rolled into one.

    I’ve been using it daily and honestly, it’s non-negotiable now. Traveling? I miss it. That’s how you know it’s more than a product — it’s a lifestyle enhancer.

    If you’re looking to level up physically, mentally, or just reclaim your edge — stop looking. Cold Stoic 3.0 is the real deal.