Skip to content
Independent·Affiliate-disclosed·Spec-verified·Prices verified and dated
Home / Compare
Head-to-head buyer guide

Echelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black) vs Renu Therapy Cold Stoic 3.0

Specs, prices, editor verdict, and who should buy which, compared side by side.

By Ryan · Founder
Updated Oct 29, 2026

Lifespan Vault earns an affiliate commission when you buy through links on this page, at no extra cost to you. It does not change our rankings or our verdicts.

Quick verdict

Echelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black) (ultra premium, $9,999.99) vs Renu Therapy Cold Stoic 3.0 (ultra premium, $11,399 to $12,099). Different tools for different jobs (see the per-product details below).

Compared on 6 shared specs · same category (cold plunge).

White Echelon All-In-One plunge tub with the chiller housing and round fan grille built into the left end and a slatted drip tray in front, a person reclining in the water
Echelon Fitness

All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black)

The Echelon All-In-One is an acrylic tub that both chills and heats, with the 1.0 HP chiller built into one end and a 15 amp outlet as its listed power supply. Echelon's US store sells it for $9,999.99 in White or Black.

PRICE
$9,999.99
View at Echelon Fitness →
Renu Therapy Cold Stoic 3.0 cold plunge in Meterous Black with California Redwood breath deck.
Renu Therapy

Cold Stoic 3.0

A 70 by 33 by 35 inch plunge that runs 37F to 104F on one 120V / 15A outlet, at $11,399, and a warranty badge that reads 5 years while the chiller carries 1.

PRICE
$11,399 to $12,099
View at Renu Therapy →
The verdict

We have not scored these two head to head, so this page does not name a winner. The Echelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black) starts at $9,999.99 and the Renu Therapy Cold Stoic 3.0 at $11,399. The per-buyer recommendations below say who each one suits.

Side-by-side specs

SpecEchelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black)Renu Therapy Cold Stoic 3.0
price$9,999.99$11,399 to $12,099
water volume89 gallons, filled to 5 in from the topFilled 91 to 104 US gallons; total capacity 134 US gallons
temperature range37 to 104°F (2 to 40°C) in the spec table, set on the unit or in the app; the description says it reaches 2°C (35.6°F); 37°F is about 2.8°C37F to 104F, cold and hot
filtrationPre-filter plus 20-micron filter in the description; mesh pre-filter, 2 filters rated at 20 microns and an ozone treatment system in the spec table; self-cleaning 3-stage sanitation in the feature list; ozone output and filter change interval not publishedDual-stage external plus internal, with integrated ozone purification
power110 to 127 V, 60 Hz, 15 amp outlet; plug type, cord length, GFCI and dedicated circuit requirements and any UL or ETL listing not published120V / 15A / 60Hz Type B 3-prong, dedicated circuit recommended, GFCI plug
warranty1 year residential and 6 months commercial on cold immersion systems per the recovery support article; the Terms give 1 year on all equipment and 10 years on frames, and one copy voids all warranties in a commercial setting; the product page shows a 5 year warranty for Premier members5 years body from delivery date, 1 year water chiller from delivery date
returns30 days from delivery with a prepaid label, fee free only when returned brand new in original packaging (refund policy); a 60 day trial with $175 return freight and a 10% restocking fee (returns page); buyer pays return shipping and some items are non-returnable for hygiene or safety reasons (recovery article); none names this tub; cancellation terms not published45 days from delivery, 5 percent restocking fee plus shipping

Echelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black) also publishes: model, colours, other listings, seller, format, materials, dimensions, weight, chiller and heater, pump and jets, sensors and controls, lighting, placement, in the box, delivery, manual, support

Renu Therapy Cold Stoic 3.0 also publishes: body dimensions, tank interior, chiller, heater, dry weight, filled weight, power draw, noise, insulation, controls, vent clearance, plumbing, step stool, finishes, extended chiller warranty, lead time, reviews, build

Who should buy which

Pick the Echelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black) if

Buyers who want a single tub for cold and warm water, set from the unit or an app, who have room for a tub measuring 76.7 x 31.5 x 28 inches and can take a 441 lb freight delivery or pay $299.99 for Hub Group setup where it is offered.

Skip if

You are buying for a gym, spa or studio, because Echelon's Terms page voids its warranties for commercial use while its support article offers 6 months; you need the 35.6°F figure confirmed, since the spec table's floor is 37°F; or you want filled weight and floor load in writing before a deck install.

Pick the Renu Therapy Cold Stoic 3.0 if

A homeowner replacing a cold-only tub who wants 37F and 104F from one unit, already has a dedicated 120V / 15A circuit within about 12 feet, 27 inches of clearance at the large vent, and a way to move 365 lbs off a pallet.

Skip if

Delivery stops at the curb and the 365 lb tub is yours to move from there, Renu publishes no white glove or in-home placement option at any price, and changing your mind inside the 45 day window costs a 5 percent restocking fee plus shipping.

Go deeper

FULL REVIEW
Read the Echelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black) review →
FULL REVIEW
Read the Renu Therapy Cold Stoic 3.0 review →

Frequently asked

Which is better, the Echelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black) or the Renu Therapy Cold Stoic 3.0?

We have not scored these two head to head, so this page does not name a winner. The Echelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black) starts at $9,999.99 and the Renu Therapy Cold Stoic 3.0 at $11,399. The per-buyer recommendations below say who each one suits.

How much do they cost?

Echelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black): $9,999.99. Renu Therapy Cold Stoic 3.0: $11,399 to $12,099. Prices are verified against the manufacturer; check the live links for current pricing.

Who should buy which one?

Echelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black): Buyers who want a single tub for cold and warm water, set from the unit or an app, who have room for a tub measuring 76.7 x 31.5 x 28 inches and can take a 441 lb freight delivery or pay $299.99 for Hub Group setup where it is offered. Renu Therapy Cold Stoic 3.0: A homeowner replacing a cold-only tub who wants 37F and 104F from one unit, already has a dedicated 120V / 15A circuit within about 12 feet, 27 inches of clearance at the large vent, and a way to move 365 lbs off a pallet.

Continue researching
Buyer guide
Best Cold Plunges
Chillers and tubs compared: Plunge vs Renu vs Ice Barrel.
Free guide · Weekly drop

The Longevity Gear Buyer's Checklist

The specs that actually decide whether a sauna, cold plunge, red light panel, or smart ring is worth it, plus the real price range for each. Get the free PDF, plus one weekly email on the gear worth buying.

If you purchase an independently reviewed product or service through a link on our website, Lifespan Vault may receive an affiliate commission.