Dynamic Cold Therapy CUBOID 304 Nano-Coated Stainless Steel Cold Plunge Tub (XL)
Dynamic Cold Therapy CUBOID 304 Nano-Coated Stainless Steel Cold Plunge Tub (XL)
CUBOID XL Stainless Steel Cold Plunge | Easy Home Wellness
XL 304 stainless steel cold plunge tub, 55" x 32.5" x 31.5", with cedar trim, step and safety-latch cover. Chiller sold separately.
- 304 Nano-Coated Stainless Steel interior — a sleek, premium-feeling tub interior built from stainless steel rather than a plastic liner.
- Nano-coated stainless steel cabinet with Pacific Cedar trim — designed to handle outdoor weather while looking at home in a backyard, patio, or indoor wellness space.
- XL size: 55" L x 32.5" W x 31.5" H — a generous, ergonomic footprint for a comfortable cold therapy session.
- Pacific Cedar step for easier entry and exit — a high-quality cedar step built for safe, easy access in and out of the tub.
- Custom cover with child safety latches — keeps the tub closed and secured when it's not in use.
- Optional Dynamic Cold Therapy chiller (.8 HP or 1.0 HP, sold separately) — cools down to 37°F (3°C) with a heat function and a WiFi app for temperature control, scheduling, and monitoring.
- Indoor or outdoor placement — Pacific Cedar trim and a nano-coated stainless cabinet made for both outdoor and indoor spaces.
- 1-year manufacturer warranty on the tub — backed by Golden Designs Inc. of Ontario, California.
Backed by an Established Wellness Manufacturer
Golden Designs Inc. covers the CUBOID tub with a 1-year manufacturer warranty, and the optional Dynamic Cold Therapy chiller carries its own 1-year warranty.
Dynamic Cold Therapy is the cold plunge line from Golden Designs Inc., based in Ontario, California, alongside the brand's Golden Designs, Dynamic, and Maxxus sauna lines. The CUBOID pairs a 304 stainless steel interior with a nano-coated stainless cabinet and Pacific Cedar trim, and it's designed to work with the brand's own chillers.
304 Nano-Coated Stainless Steel Interior
A stainless steel tub, not a plastic shell.
The CUBOID's interior is 304 stainless steel with a nano coating, which the manufacturer describes as a sleek, premium feel. Within the Dynamic Cold Therapy lineup, the CUBOID is the stainless steel, cuboid-shaped option, sitting alongside the brand's round barrel, oval barrel, and inflatable tubs. If a clean, modern look and a metal interior matter to you, this is the format built around them.
Nano-Coated Stainless Cabinet with Pacific Cedar Trim
Built to look good and stand up to the elements.
The outside pairs a nano-coated stainless steel cabinet with Pacific Cedar trim. According to the manufacturer, the nano-coated cabinet protects the tub from outdoor weather while giving it a great look, and the Pacific Cedar trim adds natural warmth and durability to outdoor or indoor spaces. The result reads as a designed piece of wellness equipment rather than a utility tub.
XL Size: 55" L x 32.5" W x 31.5" H
Spacious and ergonomic, sized for a comfortable session.
At 55" long, 32.5" wide, and 31.5" tall, the XL CUBOID gives you ample room for a comfortable and relaxing cold therapy session. Measure your intended spot, and the path to it, before you order.
Cedar Step and Child-Safety Cover
Easy in, easy out, and secured when you're done.
A Pacific Cedar step is part of the package for safe, easy entry and exit. When the tub isn't in use, the custom cover with child safety latches closes it up and latches it shut, which is worth having in any household where kids or visitors are around.
Optional Chiller: Cold, Heat, and WiFi Control
Choose your chiller, or bring the tub on its own.
The tub is available as "Just the Tub" or with a Dynamic Cold Therapy chiller in a .8 HP or 1.0 HP option (models DCT-SV-08-DO3 and DCT-SV-10-DO3). The chiller is built to integrate with Dynamic Cold Therapy tubs and can cool water down to 37°F (3°C). It also has a heat function, so you can run warmer settings when you want them. A WiFi-enabled phone app lets you adjust temperature, set schedules, and monitor the system. Note that the chiller is purchased separately and does not come with the "Just the Tub" option.
Why People Cold Plunge
What the manufacturer highlights.
Golden Designs positions cold water immersion as a way to support muscle recovery, ease soreness, boost circulation, and support overall well-being, whether you're an athlete or simply looking to add a stress-relief ritual to your routine. As with any wellness practice, Golden Designs does not provide medical guidance, so talk with your physician before starting cold-water immersion, especially if you have a health condition.
| Specifications | |
|---|---|
| Model | DCT-S-055-NS-34 |
| Size | XL |
| Dimensions (L × W × H) | 55" × 32.5" × 31.5" |
| Interior | 304 Nano-Coated Stainless Steel |
| Exterior | Nano-coated stainless steel cabinet with Pacific Cedar trim
What's this?A nano coating is a very thin protective layer applied to the stainless steel. The manufacturer uses it on the cabinet to protect the tub from outdoor weather while keeping the finish looking good. |
| Step | Pacific Cedar step |
| Cover | Custom cover with child safety latches |
| Placement | Indoor or outdoor |
| Chiller Options (sold separately) | .8 HP (DCT-SV-08-DO3) or 1.0 HP (DCT-SV-10-DO3); "Just the Tub" ships without a chiller |
| Chiller Temperature Range | Cools down to 37°F (3°C); heat function included |
| Chiller Controls | WiFi-enabled phone app to adjust temperature, set schedules, and monitor the system |
| Warranty | 1 year on the tub; 1 year on the chiller |
Freight Delivery
Your cold plunge ships via freight. The freight carrier calls 24–48 hours ahead to schedule a delivery day and roughly a 4-hour time window. Delivery is curbside or to the end of your driveway only — the single driver unloads at that point and does not carry anything into your yard, up stairs, or into a garage. Flag any access issues (long driveway, low-hanging trees, apartment complex, stairs) before shipping so they can be planned around.
Inspect every box immediately once it's unloaded and note any scratches, dents, or scuffs on the delivery receipt. You don't need to open the boxes to inspect the tub itself — but refuse delivery if you see a large hole in any box, since that typically indicates forklift damage from the carrier.
Chiller Orders
If you're adding a chiller, remember it's a separate item from the tub. "Just the Tub" does not include one, so confirm your chiller selection (.8 HP or 1.0 HP) before you check out.
Site Prep
Plan a level, stable surface that can support the tub's weight once it's filled with water, plus a clear path from the delivery point to the final spot. Check the owner's manual and talk with us about any electrical, water, or drainage requirements for your chosen chiller before delivery day.
Dynamic Cold Therapy is the cold plunge line from Golden Designs Inc., the Ontario, California company behind the Golden Designs, Dynamic, and Maxxus sauna lines. The CUBOID XL is the stainless steel, cuboid-shaped tub in that lineup, and it's a design-forward choice: it's for buyers who want a cold plunge that looks like part of a home wellness space rather than a barrel or an inflatable. If you'd rather have a round barrel shape or a lower entry price, other Dynamic Cold Therapy tubs may fit better — see the alternative below.
Three things set the CUBOID XL apart. First, the 304 stainless steel interior paired with a nano-coated stainless cabinet, a materials story you don't get from the brand's plastic or inflatable options. Second, the Pacific Cedar trim and cedar step, which give the tub a finished, furniture-like look and make getting in and out easier. Third, the custom cover with child safety latches, which comes with the tub and closes it up when it's not in use.
This is the right pick for a household that wants a premium-looking, indoor-or-outdoor cold plunge with room to stretch out, and that's comfortable buying the chiller as a separate line item. It's not the right pick if you want the lowest-cost way to try cold plunging, or if you'd rather have a single all-in-one package: the tub alone does not include a chiller. Chiller options and availability can change, so call us or ask about our price match before you order.
What We Love
- 304 Nano-Coated Stainless Steel interior — a premium, easy-to-look-at interior instead of a plastic liner.
- Nano-coated stainless cabinet — built to protect the tub from outdoor weather.
- Pacific Cedar trim — natural warmth and a finished look for indoor or outdoor spaces.
- XL 55" x 32.5" x 31.5" size — ample room for a comfortable, relaxing session.
- Pacific Cedar step — safer, easier entry and exit.
- Custom cover with child safety latches — secured when not in use.
- Optional chiller with heat function and WiFi app — cool to 37°F, warm when you want, and control it from your phone.
- Indoor or outdoor placement — flexibility to put it where your space works best.
Worth Knowing
- Chiller sold separately — the "Just the Tub" option does not include one, so plan the chiller (.8 HP or 1.0 HP) into your budget.
- 1-year warranty on both the tub and the chiller.
- Curbside freight delivery only — moving the tub to its final spot is on you or your installer, so plan access and help ahead of time.
The Recovery-Focused Athlete
You train hard and want cold immersion to be a regular part of your recovery routine at home. The XL footprint gives you room to settle in comfortably, and the optional WiFi chiller lets you set schedules and monitor temperature from your phone so the water is ready when you are.
The Design-Conscious Home Wellness Buyer
You care how the equipment looks in your space. The nano-coated stainless cabinet and Pacific Cedar trim are built to sit comfortably on a patio, in a backyard, or in an indoor wellness room, and the cedar step and cover keep the whole setup tidy.
The Sauna-and-Plunge Household
You already own a sauna, or you're planning one, and want a cold plunge to sit beside it for a heat-then-cold routine. The CUBOID's stainless and cedar styling pairs naturally with wood-clad saunas, and the chiller's heat function gives you flexibility on days when you want a milder plunge.
If you like the cuboid stainless steel look but don't need the extra room, the standard-size Dynamic Cold Therapy "CUBOID" 304 Nano-Coated Stainless Steel Cold Plunge Tub is the same design in the non-XL size, at a lower price point. If you'd prefer a round shape and a lower entry price, the Dynamic Cold Therapy Barrel 304 Stainless Steel Cold Plunge is worth a look as well.
Frequently Asked Questions
Does the cold plunge come with a chiller?
No — the "Just the Tub" option does not include a chiller. Chillers are purchased separately, and Dynamic Cold Therapy offers .8 HP and 1.0 HP options (models DCT-SV-08-DO3 and DCT-SV-10-DO3) designed to work with its tubs.
How cold does the optional chiller get, and can I control it remotely?
The Dynamic Cold Therapy chiller can cool water down to 37°F (3°C) and also includes a heat function. It's WiFi-enabled, so you can use the phone app to adjust temperature, set schedules, and monitor system performance.
What is the tub made of, and can it go outside?
The interior is 304 Nano-Coated Stainless Steel. The exterior is a nano-coated stainless steel cabinet with Pacific Cedar trim, which the manufacturer says protects the tub from outdoor weather elements. It's designed for both outdoor and indoor spaces.
How big is the XL CUBOID?
The tub measures 55" long x 32.5" wide x 31.5" tall. Measure your installation spot and the delivery path before ordering, since the tub is delivered curbside only.
What comes with the tub, and is it safe around kids?
The tub includes a Pacific Cedar step for easier entry and exit and a custom cover with child safety latches for when it's not in use. Any body of water should be supervised around children, so keep the cover latched whenever the tub isn't in use.
What's covered under warranty?
Golden Designs backs the tub with a 1-year warranty, and the optional chiller also comes with a 1-year warranty.
What does "curbside delivery" actually mean?
Your order ships via freight. The carrier calls 24–48 hours ahead to schedule a delivery window (typically about 4 hours), and the driver unloads only to your curbside or the end of your driveway — moving it into your yard, up stairs, or to its final spot is on you or your installer. Inspect the boxes for damage before signing the delivery receipt, and refuse delivery if you see a large hole in any box.
What's the return policy?
Per the manufacturer's terms, orders can be cancelled within 24 hours of purchase, and returns must be processed within 30 days of delivery with a Return Merchandise Authorization (RMA) number. Returned goods must be new, unused, and in original packaging, and are subject to a 20% handling and restocking fee plus shipping costs both ways.
Questions before you order? Call 888-612-8862 or email service@easyhomewellness.com.