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SAUNABOX

PlungeBox XL Pro Series Cold Tub

$499.00 $599.00 Save $100.00
The PlungeBox XL Pro Series is a premium cold plunge tub with enhanced insulation and a larger interior for comfortable full-body immersion.
  • Full-body immersion
    XL interior provides room for comfortable submersion to the shoulders.
  • Enhanced insulation
    Thermal construction maintains cold water temperature between chiller cycles.
  • Daily cold protocol
    Built for consistent daily cold exposure at home.
  • Recovery and clarity
    Regular cold sessions support how you feel and recover across the week.
Tax free (except CA)
30 day returns
Free USA shipping
1 year warranty

Cold water immersion is one of the most studied recovery protocols available. Most people who try it consistently report sharper mental focus, better energy through the day, and muscle recovery that lets them train again sooner.

The PlungeBox XL Pro Series puts that protocol at home without the logistics of ice sourcing, temperature management, or improvised setups. XL interior provides full-body immersion with room to sit comfortably. Enhanced thermal insulation maintains water temperature longer between chiller cycles, reducing operating time and keeping your water consistently cold.

Consistent cold exposure is what produces the results people talk about. Making it easy is what makes it consistent.

  • XL interior for full-body immersion
  • Enhanced thermal insulation
  • Chiller compatible
  • Durable construction for daily use
  • Drain port included
  • PlungeBox XL Pro Series tub
  • Drain hose
  • User manual
  • Fill the tub with cold water and allow to reach your target temperature.
  • Connect a chiller for consistent temperature maintenance across daily sessions.
  • Sessions of 2 to 5 minutes are standard. Increase duration gradually.
  • Drain and cover between sessions to maintain water quality and temperature.

Daily cold water immersion supports recovery, mood, and how your body responds to training and stress.

  • XL interior for comfortable full-body immersion
  • Enhanced insulation for consistent water temperature
  • Supports daily recovery protocol
  • Durable construction for long-term home use

1-Year Manufacturer Warranty

This product includes a 1-year manufacturer warranty from the date of purchase.

For shipping timelines and delivery details, please review our Shipping Policy.

If you have any questions before or after your purchase, call us at +1 (800) 686-5898.

30 Day Hassle-Free Returns

While we stand behind every product we offer, we understand that sometimes things don't work out as expected. For that reason, most eligible products may be returned within 30 days of delivery. If you decide the product isn't the right fit, simply reach out to our team and we'll guide you through the process.

To get started, you can review our Refund Policy or contact our support team directly. We're here to make the process as smooth as possible.

How Returns Work

The return process is straightforward. Once approved, you'll receive return instructions and the correct return address. Items must be sent back in their original condition and packaging to ensure proper processing.

Important Return Information

Returns must be requested within 30 days of delivery. Items should be returned in original packaging and in unused condition. Depending on the product and manufacturer, return shipping costs, processing fees, or restocking fees may apply. Financing-related fees are non-refundable, and refunds are issued to the original payment method once the return is received and inspected.

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The premium daily cold plunge.

The premium daily cold plunge.
PlungeBox XL Pro Series Cold Tub

Why the PlungeBox XL Pro Series

Cold water immersion is one of the most researched recovery tools available.

Up to 20% faster perceived muscle recovery
Up to 40% reduction in muscle soreness scores
Significant mood improvement reported in 80% of regular users
Up to 29% improvement in sleep quality with consistent use
XL interior format

XL interior format

Sized for full shoulder-deep immersion for most body types.

Enhanced thermal insulation

Enhanced thermal insulation

Sets up quickly without permanent installation.

Chiller compatible

Chiller compatible

Built from durable materials for regular daily use.

Durable construction

Durable construction

Simple drain valve for easy water changes.

Drain port

Drain port

Includes drain port for simple water changes.

Cover compatible

Cover compatible

Works with standard plunge covers to maintain temperature between sessions.

1-year warranty

1-year warranty

Backed by SAUNABOX 1-year manufacturer warranty.

Home ready

Home ready

No permanent installation required for standard home use.

How to use the PlungeBox XL Pro Series

Fill and chill

1 - Fill and chill

Fill the tub and allow to reach target temperature with a chiller.

Submerge and breathe

2 - Submerge and breathe

Enter the tub and breathe steadily through the cold response.

Drain and maintain

3 - Drain and maintain

Drain or cover after each session to maintain water quality.

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FAQs

What size is the XL interior?

The XL Pro Series provides full-body immersion clearance. Dimensions are listed in the product specifications.

Does it include a chiller?

No. The tub is compatible with standard cold plunge chillers sold separately.

How is the insulation different from a standard tub?

Enhanced thermal layers reduce heat exchange so cold water stays colder between chiller cycles.

What is the recommended session length?

2 to 5 minutes is standard. Build up gradually.

What warranty is included?

The PlungeBox XL Pro Series includes a 1-year manufacturer warranty.

Where can I find longevity devices similar to the PlungeBox XL Pro Series?

Check out these related biohacking equipment collections.