Dynamic Cold Therapy Cuboid XL 304 Stainless Steel Cold Plunge Tub
Dynamic Cold Therapy Cuboid XL 304 Stainless Steel Cold Plunge Tub
- Regular price
- $5,999.00
- Regular price
- $6,999.00
- Sale price
- $5,999.00
- Unit price
- per
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Shipping & Delivery
Shipping & Delivery
Your order ships free from the manufacturer's California warehouse on a strapped pallet via insured LTL freight. Orders are processed within 2 business days, and delivery to most addresses in the contiguous US takes 5–7 business days after shipment. You'll receive a tracking number by email as soon as your order leaves the warehouse.
Scheduling your delivery. The freight carrier will reach out before the truck rolls — most carriers call 24–48 hours ahead to lock in a four-hour delivery window. Some carriers (including R+L) send an email or text the morning of delivery instead. Respond promptly either way. If the carrier can't reach you and misses 2–3 delivery attempts, terminal storage fees kick in and the item may be returned at your expense.
What to expect at delivery. A 53-foot semi-truck arrives at your curbside. The driver uses the truck's built-in liftgate to lower the pallet to ground level — that's where their responsibility ends. Standard delivery does not include bringing the equipment inside, up stairs, or unpacking. Plan ahead: have help available to move it once it's off the truck. Someone must be present to sign for the delivery.
CRITICAL — inspect before you sign. Walk around the pallet and check every box before signing the Bill of Lading. Note any scratches, dents, or scuff marks directly on the delivery receipt. If you see a large hole, crushed corner, or obvious structural damage, refuse the delivery — we'll ship a replacement at no cost. Signing a clean BOL releases the freight carrier from all liability. A damage claim cannot be filed after a clean signature. This takes two minutes and fully protects you.
Good to know. If your address changes after the order ships, contact us immediately — carrier re-routing fees may apply and will add transit time. If your location cannot comfortably accommodate a 53-foot semi-truck (island, remote road, gated community, narrow access), contact us before ordering so we can arrange an appropriate solution.
Free freight applies to standard residential curbside delivery within the contiguous 48 US states. Hawaii, Alaska, and Canada are not available at standard checkout — contact us before ordering for a freight quote. Transit times are carrier estimates, not guarantees. Applies to all Golden Designs Inc. brands: Dynamic Saunas, Maxxus Saunas, and Dynamic Cold Therapy. View our full Shipping & Delivery policy →
Return Policy
Return Policy
We stand behind every product we sell. If it's not the right fit, you have 30 days from delivery to return it — and if you need to cancel before it ships, you can do that within 24 hours of purchase at no charge.
How to start a return. Email us your order number at sales@recoveryroomdirect.com and we'll issue a Return Merchandise Authorization (RMA) number within one business day. Write that number clearly on the outside of every box before handing it to the carrier — the warehouse will not accept returns without it.
Condition required. The item must come back new, unused, and in its original packaging with all components, hardware, and accessories included. Items that have been assembled, used, or modified cannot be returned. Electronic components — power supplies, control panels, and accessories — are non-returnable under manufacturer policy regardless of condition.
What it costs to return. We want to be upfront about this: returning large freight equipment has real costs. The manufacturer charges a 20% restocking fee on all returns, and you are responsible for the return freight. If your original order shipped free, the actual outbound freight cost is also deducted from your refund. Any storage or carrier routing fees incurred during the return process are the buyer's responsibility as well. Once the item arrives at the warehouse and passes inspection, your refund is issued within 5 business days to your original payment method.
Damaged on arrival? That's a different process entirely — and you're fully protected. If you refused the delivery and documented the damage on the Bill of Lading, we handle the freight claim and ship you a replacement at no cost. No restocking fee, no return shipping. This is exactly why we ask you to inspect carefully before you sign.
The manufacturer warranty covers defects that arise after the 30-day return window. See full warranty terms at goldendesigninc.com. Questions about your order? Call us at 1-888-500-5675 or email sales@recoveryroomdirect.com — Mon–Sat, 9am–6pm EST. Applies to all Golden Designs Inc. brands: Dynamic Saunas, Maxxus Saunas, and Dynamic Cold Therapy. View our full Return Policy →
Price Match Guarantee
Price Match Guarantee
Found it for less at an authorized dealer? We'll match it — before or after you buy.
We're factory-authorized for every brand we carry. If you find this exact model listed at a lower price by another authorized retailer, send us the link and we'll match it before you check out. Already purchased? We'll refund the difference within 30 days of your order date.
To claim: Email us or call with a link or screenshot showing the lower price, the retailer name, and model number. We'll confirm authorization status and apply the match — typically same business day.
Applies to authorized U.S. retailers only. Excludes open-box, clearance, used, and bundle pricing. Item must be in stock at the competing retailer.
View our full price match terms
Free Freight Shipping, Every Order
Ships free to all 48 states via fully insured freight. White-glove inside placement available on select items.
Lowest Authorized Price, Guaranteed
Find it for less at any authorized dealer — show us the quote and we'll match it on the spot.
Talk to Someone Who Actually Knows
Our team knows this equipment in depth. Call or chat Mon–Sat for straight answers before you buy.
Authorized Dealer. Full Manufacturer Warranty.
Factory-authorized for every brand we carry. Legitimate warranty, genuine parts, zero grey-market risk.
PRODUCT DESCRIPTION
The Stainless Steel Cold Plunge Tub Built for Serious Practitioners
Forty-eight and a half inches of 304 nano-coated stainless steel. Pacific Cedar trim. A child-safe insulated cover. Chiller-ready 3/4" ports. The Cuboid XL is the most complete stainless steel cold plunge tub in the DCT lineup — engineered for practitioners who treat cold therapy as infrastructure, not an experiment.
Shop Pay installments, powered by Affirm, available at checkout — spread the investment over time. Free freight delivery included.
Let’s Be Direct About What You’re Buying
At $5,999, the Cuboid XL is the most substantial stainless steel cold plunge tub in the DCT lineup. We want you to buy the right tub, not just a tub — so here’s the honest version.
If you’re 5’8” or shorter, the Cuboid Standard at $5,499 will immerse you just as effectively and save you $500. The XL exists for one measurable reason: five additional inches of interior length (48.5” vs. 43.5”). That difference matters for taller athletes, larger frames, and anyone who has ever felt their legs cramped at the waterline during a standard-size plunge.
If that describes you, the XL is the right call. If it doesn’t, we’ll tell you. Either way, you get the same 304 nano-coated steel, Pacific Cedar trim, chiller-ready ports, insulated cover, and cedar step. The only variable is how much room you need to stretch out.
304 Nano-Coated Stainless Steel — The Material That Determines Year Five
Most cold plunge vessels degrade under the combination of low temperatures, mineral-rich water, and daily use. The Cuboid XL is built around the same alloy grade used in commercial food processing — a deliberate engineering choice whose impact compounds over years, not months.
Interior and exterior cabinet are both 304 SS with a nano-coating that forms a passive chromium oxide barrier. No liner to degrade, no plastic to crack, no surface to stain. The same alloy used in commercial food processing for its non-reactive, non-porous surface properties.
Pacific Cedar is naturally antimicrobial, moisture-resistant, and dimensionally stable in wet outdoor environments — properties synthetic materials approximate but can’t sustain long-term. The cedar trim adds structural rigidity to the stainless cabinet while aging gracefully exposed to the elements.
Standard 3/4” IN/OUT fittings connect directly to both DCT 0.8HP and 1.0HP WiFi chiller units — no adapters, no proprietary connectors. Gravity drain and manual fill work without a chiller for ice-over-water sessions.
Everything You Need to Plunge Tomorrow
The Cuboid XL ships as a functional cold therapy system — not a tub that requires follow-up purchases before you can use it safely.
4” Insulated Cover (Included)
The custom cover maintains water temperature between sessions — which matters most when you’re running a chiller that’s actively holding a target temp. Child safety latches prevent unsupervised access. A replacement cover is also available separately in our store if needed.
Compatible with the DCT Chiller Ecosystem
The 0.8HP WiFi Chiller handles residential cold therapy protocols with consistent temperature control. The 1.0HP model handles higher-volume use — commercial applications, multi-user sessions, or environments where the tub cycles heavily. Both connect directly to the 3/4” ports. Chillers are sold separately — add one at checkout or call (888) 500-5675 for a recommendation based on your use case.
Pacific Cedar Step Stool (Included)
Safe, repeatable entry and exit matters more than it sounds — particularly on the way out, when vascular and neurological responses are actively shifting. The included cedar step provides the correct ergonomic height without improvising with furniture.
Three Ways Serious Practitioners Use the Cuboid XL
Cold immersion’s effectiveness is tied directly to consistency and protocol design. Here’s how the Cuboid XL fits into a structured recovery week.
A 2–4 minute immersion before caffeine. Research on cold water immersion suggests it may support norepinephrine and cortisol awakening responses — the neurochemical equivalent of clearing the fog before the day starts. Many practitioners describe this as the session that replaced their first coffee within two weeks of daily use.
Target: 50–55°F. Duration: 2–4 min. Breathe slowly — the urge to gasp is the threshold you’re training through.
The 48.5” interior is particularly relevant here. Full-leg immersion covers the lower extremities where micro-tears, systemic inflammation, and neural fatigue accumulate after heavy training. Research suggests cold immersion may support recovery between sessions by modulating the acute inflammatory response.
Target: 45–55°F. Duration: 10–15 min. Wait 30–60 min post-lift if maximizing hypertrophy adaptation is the primary goal.
A 5–7 minute immersion 90 minutes before sleep accelerates the core body temperature drop that precedes deep sleep onset. Research on thermoregulation and sleep architecture suggests cold exposure in the early evening may support sleep quality without disrupting circadian rhythm.
Target: 55–60°F (slightly warmer for sleep priming). Shorter session — you’re winding down, not training the nervous system.
Who the Cuboid XL Is Built For
Three buyer profiles who consistently find the XL’s additional interior length worth the step up from the Standard.
You’re 6’0” or taller, training four to five days a week, and a standard-size plunge leaves your knees bent or your calves above the waterline. The XL gives you full-leg immersion — which is where lower-body recovery actually happens. You need this at home because driving to a recovery facility after a hard session isn’t something you’re going to do consistently.
You’ve done the research on norepinephrine and catecholamine response. You treat your morning plunge the way others treat their espresso machine. You want food-grade stainless steel you can trust, a chiller that lets you dial exact temperatures, and a setup that requires zero mental overhead to maintain. The Cuboid XL with a DCT WiFi chiller is that system.
Stainless steel is the correct material for commercial cold therapy applications — it can be sanitized with hospital-grade protocols without degrading the interior surface. The Cuboid XL’s 180-gallon capacity supports multi-user sessions, and 304-grade steel holds up under the cleaning cycles that plastic liners don’t. For commercial build-outs, call (888) 500-5675.
The Math on Owning vs. Going Out
Cold therapy clinics and cryotherapy spas charge $50–$80 per session. Here’s what the Cuboid XL costs per use when treated as the daily infrastructure it is.
HSA and FSA funds may be applicable to wellness equipment — check with your plan provider before purchase. Shop Pay installments, powered by Affirm, are available at checkout to spread the $5,999 investment over time.
Choose Your Cuboid
Three tubs. Same DCT engineering philosophy. Different interior materials and interior lengths. Here’s how to find the right fit before you order.
Pacific Cedar exterior with a PVC interior. Same exterior dimensions as the Standard. The entry point for buyers whose primary goal is cold immersion, not material longevity or hygiene intensity.
Best for: Budget-conscious buyers, lighter use frequency, indoor placement
View Cuboid Plastic304 nano-coated stainless steel interior and exterior. 43.5” interior length. The right choice for buyers 5’8” and under who want full stainless durability without the XL footprint — and without the $500 premium.
Best for: Most buyers, moderate height, residential daily use
View Cuboid Standard SS304 nano-coated stainless steel throughout. 48.5” interior — five inches longer than the Standard. For taller athletes, commercial use, or buyers who require full-leg immersion without compromise.
Best for: Buyers 5’9”+, commercial protocols, complete lower-body immersion
Currently ViewingDCT Cuboid XL vs. Standard vs. Plastic — Full Comparison
All three Cuboid models share the same exterior footprint. The differences are in interior material, interior length, and price. Here’s exactly where each model sits.
| Cuboid Plastic $4,999 |
Cuboid Standard SS $5,499 |
Cuboid XL SS $5,999 |
|
|---|---|---|---|
| Interior Material | PVC Plastic | 304 Nano SS | 304 Nano SS |
| Exterior Cabinet | 304 SS + Pacific Cedar | 304 SS + Pacific Cedar | 304 SS + Pacific Cedar |
| Exterior Length | 50” | 50” | 55” |
| Interior Length | ~43.5” | ~43.5” | ~48.5” |
| Exterior Width / Height | 30” W × 31.5” H | 30” W × 31.5” H | 30” W × 31.5” H |
| Approximate Capacity | ~140 gal | ~140 gal | ~180 gal |
| Insulated Cover | ✓ Included | ✓ Included | ✓ Included |
| Pacific Cedar Step Stool | ✓ Included | ✓ Included | ✓ Included |
| 3/4” Chiller Ports | ✓ | ✓ | ✓ |
| Chiller Included | Sold separately | Sold separately | Sold separately |
| 1-Year Warranty | ✓ | ✓ | ✓ |
Full Specifications
| Exterior Dimensions | 55” L × 30” W × 31.5” H |
| Interior Dimensions | ~48.5” L × 26” W × 28.5” H (approximate — verify before ordering) |
| Interior Material | 304 Nano-Coated Stainless Steel |
| Exterior Cabinet | 304 Nano-Coated Stainless Steel |
| Exterior Trim | Pacific Cedar |
| Dry Weight | 200 lbs |
| Filled Weight | ~1,500 lbs (~180 gallons) |
| Water Capacity | ~180 gallons |
| Drain / Fill Connections | 3/4” IN / 3/4” OUT (standard fittings) |
| Included Cover | 4” insulated cover with child safety latches (custom fit) |
| Included Step | Pacific Cedar step stool |
| Compatible Chillers | DCT 0.8HP WiFi Chiller & Heater; DCT 1.0HP WiFi Chiller & Heater |
| Chiller Included | No — sold separately |
| Indoor / Outdoor | Both |
| Manufacturer Warranty | 1 year |
| Brand | Dynamic Cold Therapy (Golden Designs Inc.) |
Interior dimensions are approximate. Contact us at (888) 500-5675 to confirm before ordering if you have specific space constraints.
What’s in the Box
DCT Cuboid XL — 55” exterior, 304 nano-coated stainless steel interior and cabinet, Pacific Cedar trim, 3/4” IN/OUT ports
Custom-fit insulated cover with child safety latches — sized specifically for the Cuboid XL
High-quality Pacific Cedar step stool for safe ergonomic entry and exit
Chiller not included. Add a DCT 0.8HP WiFi Chiller or DCT 1.0HP WiFi Chiller for automated temperature control. A replacement cover is available separately if needed.
Shipping & Delivery
The Cuboid XL ships via freight carrier with free curbside delivery included. Estimated transit: 5–10 business days after dispatch. You will receive tracking information by email when your order ships. Curbside delivery means the carrier places the pallet at your curb or driveway — not inside your home.
White Glove delivery — threshold placement, inside delivery, or room-of-choice setup — is available as a paid upgrade. Given the 200 lb dry weight, plan your placement route before delivery day. To discuss White Glove options, call (888) 500-5675.
Filled weight is approximately 1,500 lbs (~180 gallons of water + 200 lb tub). Concrete slabs, reinforced patios, and ground-level floors handle this load routinely. Elevated decks or upper-story placement should be confirmed with a contractor before ordering. Questions? Call (888) 500-5675.
The Cuboid XL arrives fully assembled — no construction required. Chiller connections use standard 3/4” hose fittings. Fill with a garden hose. Drain via the 3/4” OUT port into an appropriate outdoor area or floor drain.
DCT Cuboid XL — Frequently Asked Questions
Do I need a chiller, or can I use ice in the Cuboid XL?
You can use either. The Cuboid XL’s 3/4” ports are designed for chiller connectivity, but the tub also supports ice-over-water sessions without a chiller — fill with cold water and add ice to reach your target temperature. A chiller provides consistent automated temperature control across sessions without ice management. The DCT 0.8HP WiFi Chiller handles most residential protocols. The 1.0HP handles higher-volume or commercial use. Both are sold separately — add one at checkout or call (888) 500-5675 for a recommendation based on your use case.
What is the difference between the Cuboid XL and the Cuboid Standard?
Both use 304 nano-coated stainless steel interior and exterior, Pacific Cedar trim, 3/4” chiller ports, an insulated cover, and a cedar step stool. The only functional difference is size: the XL has a 55” exterior (48.5” interior) vs. the Standard’s 50” exterior (43.5” interior). Five more inches of interior immersion length — meaningful for buyers 5’9” and taller, and not worth the $500 premium for buyers who don’t need it.
What temperature can the Cuboid XL reach?
The tub itself doesn’t generate temperature — that’s the chiller’s function. The DCT 0.8HP and 1.0HP WiFi chillers cool water into cold therapy ranges suitable for immersion protocols (consult each chiller’s spec sheet for exact minimum temperatures). With ice alone, water temperature depends on ambient conditions, ice quantity, and session frequency. For precise, consistent temperature control without daily ice management, a DCT chiller is the practical solution.
Is the Cuboid XL suitable for outdoor year-round use?
Yes. The 304 nano-coated stainless exterior and Pacific Cedar trim are both engineered for outdoor durability. In freezing climates, drain the tub if ambient temperatures will fall below 32°F and a chiller isn’t actively running — standing water in the lines can freeze and cause damage. Call us at (888) 500-5675 for winterization guidance specific to your region.
What surface can I put the Cuboid XL on?
Filled weight is approximately 1,500 lbs (~180 gallons plus the 200 lb tub). Concrete slabs, reinforced patios, and ground-level floors with standard load ratings handle this without issue. Elevated wood decks should be assessed by a contractor before placement — the filled weight may exceed the deck’s designed load rating. Upper-story placement requires a structural assessment. We can walk through your specific setup: (888) 500-5675.
Is the insulated cover included, or is it sold separately?
The 4” insulated cover with child safety latches ships with the Cuboid XL — it is included. The separately listed Cuboid XL cover in our store is a replacement unit for buyers who need a spare or a replacement after extended use. You do not need to purchase an additional cover when ordering the XL.
Can the Cuboid XL be used as part of a medical or physical therapy program?
The Cuboid XL is a wellness device, not a medical device — it is not intended to diagnose, treat, cure, or prevent any medical condition. Many buyers use it to complement, not replace, clinical care during recovery phases. If you are under the care of a physician or physical therapist, discuss how cold water immersion fits into your protocol before use. Certain cardiovascular conditions, Raynaud’s syndrome, and open wounds contraindicate cold immersion — consult a qualified healthcare professional before beginning any cold therapy protocol.
Is Shop Pay financing available for the Cuboid XL?
Yes. Shop Pay installments, powered by Affirm, are available at checkout — allowing you to split the $5,999 purchase into manageable payments. Terms and approval are determined at checkout. HSA and FSA funds may also be applicable to wellness equipment — check with your plan provider before purchase.
Official Dynamic Cold Therapy authorized retailer — full manufacturer warranty backed
Curbside freight delivery included — White Glove upgrade available
Real people, real answers — (888) 500-5675
Powered by Affirm — split payments at checkout
The Stainless Steel Cold Plunge Tub Built for the Length You Actually Need
48.5” of 304 nano-coated stainless steel. Cover, step, and chiller-ready ports included. Free freight delivery.
