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The Plunge Supplier GD-004 All in One Cold Plunge: the narrowest all in one tub in the line
The Plunge Supplier GD-004 All in One Cold Plunge is a one person acrylic tub for indoor or sheltered outdoor use. Step in and lie down. It measures 78 by 32 by 28 inches and holds 100 gallons. All in one means the chiller and heater are built into the tub body, so you fill it, plug it in, and start. It runs on a standard 120 volt household outlet, so no electrician is needed.
The 1 horsepower unit cools or heats the water from 37 to 107 degrees Fahrenheit. A paper cartridge filters the water. Ozone, a gas that helps clean the water, reduces the chemicals needed. Thermal covers, two cartridges, and a filter wrench come in the box. An underwater light changes color. Set the temperature through the Tuya or Smart Life phone app. Choose the digital control panel or pay more for touchscreen control on this page. Prefer sitting upright? See the Plunge Supplier GD-007 Deep Soaking All in One Cold Plunge upright tub. The Plunge Supplier GD-004 All in One Cold Plunge ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.
Includes
- All in One Cold Plunge
- Thermal Covers
- 1 HP chiller with heating and cooling functions (37 °F – 107 °F).
- Paper Core Filter System
- Color-changing Underwater Lighting (RGB LED)
- Built-in Ozone Disinfection
- Built-in Self-priming System
- Tuya or Smart Life App (Wifi & Bluetooth)
- 4 Chrome Jets
Specifications
GD-004F | GD-004
Length: 78″ (195cm)
Width: 32″ (80cm)
Height: 28″ (71cm)
Net Weight: 397 lb (180 kg)
Filled Weight: 1,235 lb (560 kg)
| Capacity | 1 Person |
|---|---|
| Water Capacity (Filled to the Max. Water Line) | 100 Gallons (380 Litres) |
| Voltage | 110 – 120v / 60 Hz |
| Chiller/Heater | 1.0 HP |
| Min. Water Temperature | 37°F (3°C) |
| Max. Water Temperature | 107°F (42°C) |
Features
Key Features & Performance Benefits
| Feature | Benefit / Experience |
|---|---|
| Integrated high-performance chiller (down to 37 °F) | Provides reliable cold-water immersion without needing ice, ideal for muscle recovery, inflammation reduction, and metabolic boost. |
| Whisper-quiet, energy-efficient operation | Great for indoor or outdoor use — you can plunge early morning or late at night without noise concerns. |
| Ozone + filtration system for clean, hygienic water | Keeps water fresh and safe — reducing maintenance and ensuring each plunge feels clean and comfortable. |
| Smart controls & optional app connectivity | Adjust temperature, schedule sessions, and monitor maintenance directly from your smartphone for convenience and control. |
| Durable, weather-proof build for indoor or outdoor use | Built to endure regular use, whether on a deck, patio, or inside — a long-term wellness investment for your home. |
Reviews from Clients
Reviews from The Plunge Supplier Clients
These photos and comments were sent to us directly by the manufacturer, The Plunge Supplier. They come from its own clients, including gyms, clinics and home users, and are not reviews of My Cozy Outdoors orders.
“I feel so much more relaxed in my body after exercising using a cold water tub. Cold water is very effective in improving blood circulation and relieving fatigue.”
Gym owner
Client of The Plunge Supplier
“The product is very well designed, matches my yard, goes well with my sauna, very easy to use, I love the simplicity!”
Retailer
Client of The Plunge Supplier
“Happy with my plunge! Easy setup and the insulated tub keep the water refreshingly cold. What sets it apart is the Wi-Fi app for easy customization and control from my phone.”
School
Client of The Plunge Supplier
“The actual seeing of the tub is much prettier than the picture and is my favorite style. Now often have ice baths at home with friends and really happy.”
Physiotherapy center
Client of The Plunge Supplier
“This acrylic plunge is fantastic! The design is sleek, and the quality is top-notch. It's exactly what I was looking for, and it exceeded my expectations. I'm thrilled with this purchase and happily give it 5 stars!”
Dental practitioner
Client of The Plunge Supplier
Warranty
The Plunge Supplier Manufacturer Warranty
Every cold plunge from The Plunge Supplier is covered by the manufacturer warranty. The Plunge Supplier gives 5 years on its tubs and 1 year on its chillers.
1 Year
Chiller and Accessories
Covers the chiller system and its parts: compressor, heat exchanger, pump, controller, screen and fan. The manufacturer sends replacement parts free of charge, with video or written repair guidance.
5 Years
Tub Body
Covers the tub itself: cracks, material defects and leaks at the joints. Depending on the problem, the manufacturer provides repair instructions or a compensation solution.
How a warranty claim works
- Contact us, describe the problem and send photos or a short video. We will help you open the claim with The Plunge Supplier.
- The manufacturer's technical team reviews it. If the problem can be fixed on site, they ship the parts free by courier (UPS, FedEx or DHL) along with repair guidance.
- For a serious fault that cannot be repaired on site, such as a failed compressor or heat exchanger, the manufacturer may send a replacement unit.
Good to know
- The warranty covers defects and failures that are not caused by misuse, accidents or damage by the user.
- Warranty service is built around technical support, free spare parts and repair guidance, not refunds or automatic replacement of a whole unit.
- Keep your order invoice. It is your proof of purchase for any claim.
This page is a plain-language summary of the warranty The Plunge Supplier publishes for its products. The manufacturer sets the actual terms.
FAQ
Does this all-in-one cold plunge need plumbing or an electrician?
No. The GD-004F arrives pre-assembled with the chiller built into the cabinet. You fill it with a garden hose, plug it into a standard 120 V household outlet and let the built-in self-priming system take over, so there is no drain line, pump room or hard-wiring to arrange. Use a grounded outlet and follow local electrical code for any outdoor placement.
Can it heat the water like a hot tub as well as chill it?
Yes. The integrated 1 HP unit both cools and heats, and the Specifications tab lists a working range of 37 F up to 107 F. That lets you run true cold-therapy sessions in the high 30s, then switch the same tub to a warm soak for contrast bathing without adding any separate heater.
How big is the GD-004F and how much water does it hold?
It measures 78 inches long, 32 inches wide and 28 inches tall, holds about 100 gallons when filled to the max line and is rated for one person. Expect roughly 397 lb empty and about 1,235 lb filled, so check that a deck, balcony or upstairs floor can carry that load before you set it in place.
Is there a touchscreen option, or is the control panel fixed?
The standard build ships with the digital control panel. If you prefer a touchscreen, pick Touchscreen Control on the Control Type selector above the add-to-cart button and the upgrade is added to your order. Either way you can also adjust temperature and schedules from the Tuya or Smart Life app over Wi-Fi and Bluetooth.
How does the water stay clean between changes?
Built-in ozone disinfection works alongside the paper-core filter system to keep the water clear, and the included thermal covers keep debris out while you are not plunging. When the filter media needs refreshing, a replaceable filter cartridge 6-pack is offered on the Accessories selector on this page, so you can stock spares with the tub.
Can I keep it outdoors on a patio?
Yes. The Features tab describes a durable, weather-proof build for indoor or outdoor use and whisper-quiet operation, so it can live on a deck or patio without disturbing neighbours. A covered spot out of direct sun and rain will help the finish and the chiller last longer. Browse the rest of the all-in-one cold plunge range for other sizes.
Is there a warranty, and what does it cover?
Yes. The Plunge Supplier covers the tub for 5 years and the chiller and its accessories, such as the compressor, heat exchanger, pump, controller, screen and fan, for 1 year, against defects that are not caused by misuse. Support is handled with free spare parts plus repair guidance rather than unit swaps. The Warranty tab on this page explains how a claim works.
Customer Reviews
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What Our Customers Say
D
A sauna turns your garden into a spa oasis. We debated it for a while, but after renovating our house, we pulled the trigger and bought a sauna from Norse Steam and Maya. She was always super responsive and helpful throughout the process. Don't kid yourself, getting a really nice sauna is not that easy. Sizing and heating need to be figured out, as does the building, but we have always had a helpful partner on our side. She never upsold us on anything we didn't need, and we got some nice freebies when the sauna was delivered. And now we can really enjoy every moment in our garden.
KF
I'm really happy with my sauna purchase. Maya gave above and beyond excellent customer service. She wasn't pushy and gave impressive followup after the delivery to make sure everything was just right.
DE
I enjoy my FD2 Sauna with Red Light, Infrared and radiant heat. Use it 5x a week and my post workout soreness is minimal and sleep great. Maya at Norse Steam was excellent to work with.
B
We purchased the 3-person sauna for our outdoor garden. We chose the cube sauna for the aesthetic and could not be happier.
I assembled by myself except for the 2 large panels (requires a few people). Instructions were good - took me two partial Saturdays to complete and a few hours to unpack and organize in advance of assembly. Had my elec. add a NEMA enclosure on the back for the controller and power for lights and a 2nd panel for the wireless control.
Customer service was excellent
MP
Awesome Sauna and Awesome Company and Experience purchasing it from Maya!
After much research I chose the Finnmark FD-2 and it has met and exceeded all my expectations! Easy to assemble and it functions great - just as advertised. I highly recommend it for home use!
EA
Recently purchased the Finnmark one person after much research. Extremely happy with it and the ordering process. Maya was very responsive and helpful during the process and keeping us updated while we waited for shipment. There were several places I could have ordered this, but i chose Norse Steam based on the communication and customer service which was fantastic. The shipment was also excellent. The setup was pretty seamless for two people - but the best part is the sauna experience 10/10
G
Maya is amazing - super helpful and responsive. Looked at many stores, these guys have the best prices and service. Highly recommend
GR
Norse Steam, and specifically Maya, were extremely helpful as I was making the decision for our Sauna. I was able to get all of the necessary details to make a decision as construction was happening in my backyard to make space for it.
We absolutely love the CL7G. It is extremely comfortable for 6 people (can fit more less comfortably). The Thermory Spruce and Aspen in the interior smells great. The lighting is lovely. We paired the CL7G with the Harvia Spirit 10.5kw.
RS
Had great experience shopping at Norse Steam for the new heater. They had very good deal, with rocks. Customer service was good, and responded very fast with my questions. Received the heater, and it looks good, and the quality seem to be great. Will install soon, and am very excited to start experiencing sauna the way it ment to be
O
positive purchase experience - Harvia Legend 150 SL woodstove
thanks Norse Steam for flawless transaction - I got instant replies on my questions, received competitive price on the wood stove and got it delivered within two weeks!
Can highly recommend Norse Steam for others.
JR
Smoking Hot Tub!
I got the Norse Steam SaunaLife wood-fired hot tub, the S4N model, and its been seriously great. It heats up quicker than I expected, usually around an hour and a half, and once its hot, it stays that way for a good long while. The wood-fired system is simple to use, and honestly kind of fun.
The tub itself feels solid and well put together. The thermo-spruce exterior looks beautiful in person, and the fiberglass interior is smooth, deep, and easy to clean. Its the kind of setup that just works without a bunch of fuss, which I really appreciate.
Also, the team at Norse Steam was genuinely great to work with. Super helpful, quick to respond, and made the process really easy from start to finish. It felt like they actually cared that I was happy with it. The tub has totally become a go-to way to unwind, and I wouldnt change a thing.
S
Maya was so knowledgeable and responsive
Maya was so knowledgeable and responsive. She helped me understand the product options and found a fantastic solution that fit our needs. Her follow through was very helpful and made us comfortable with our decision. We are extremely happy with the end result!
W
Great service
I recently purchased the Harvia Club sauna equipment, and I am thoroughly impressed with both the product and the customer service experience. The heaters robust performance and durable stainless steel construction make it ideal for larger sauna spaces, providing consistent heat and a relaxing environment. Its compatibility with advanced controls ensures a personalized sauna experience every time.
The customer service team was exceptional, prompt, knowledgeable, and helpful throughout the purchase process. They ensured smooth delivery and provided clear guidance on installation and operation. Overall, I highly recommend Harvia Club for anyone seeking premium-quality sauna equipment backed by excellent support!
BT
Great Sauna & Purchase Experience
Great experience purchasing Finnmark FD-2 from Norse Steam. Good communication and easy to assemble. Temperature increases quickly (30 minutes or less to 140) and maintains well. So far this has been a great purchase.
M
Great sauna and great customer service
We purchased the Finnmark SD-1 sauna. Maya was extremely helpful with the purchase. We had an issue with the sauna not reaching the maximum temperature, and Maya connected us with the appropriate technician that explained how to correct the issue. The sauna now heats to the maximum temperature (170 degrees) in less than an hour, and it is a great unit. We are very happy with it, and we would definitely purchase from NorseSteam if we needed any other items.
JK
Sauna Review
I recently purchased a sauna from Norse Steam, and I couldn't be more impressed with the entire experience. From start to finish, their customer service was exceptional, and Maya deserves special recognition for her outstanding support!
Maya was incredibly knowledgeable and patient, answering all my questions about the sauna features, installation process, and maintenance. She went above and beyond to ensure I selected the perfect model for my home. Even after the purchase, Maya followed up to make sure everything was running smoothly and that I was satisfied with my sauna.
The sauna itself is top-notch beautifully designed, durable, and easy to use. It's clear that Norse Steam takes pride in the quality of their products and their commitment to customer satisfaction.
If you're considering a sauna, I wholeheartedly recommend Norse Steam. With their excellent customer service and high-quality products, you're in great hands. Thank you, Maya, and the entire Norse Steam team for a fantastic experience!
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