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Head-to-head buyer guide

The Plunge vs Renu Therapy Aurelius

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

By Ryan · Founder
Updated Oct 16, 2026

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Quick verdict

The Plunge (premium, $8,490 to $8,990) vs Renu Therapy Aurelius (ultra premium, $9,999). Different tools for different jobs (see the per-product details below).

Compared on 0 shared specs · same category (cold plunge).

The Plunge fiberglass cold plunge tub with integrated chiller
Plunge

The Plunge

The cold plunge that became the default - chillered, plug-and-play, with a 1 year warranty on both tub and chiller.

PRICE
$8,490 to $8,990
SCORE
8.5 / 10
Renu Therapy Aurelius laydown cold plunge tank in Meterous Black with a brown composite breath deck along one side
Renu Therapy

Aurelius

The Aurelius is Renu Therapy's laydown tank, built for lying back: a 62.5 inch long water area, a 0.5 HP chiller and a 1 kW heater, all running from a standard 120V outlet. Every color and deck combination sells for $9,999, delivered free to the curb in the contiguous US.

PRICE
$9,999
View at Renu Therapy →
The verdict

We have not scored these two head to head, so this page does not name a winner. The Plunge starts at $8,490 and the Renu Therapy Aurelius at $9,999. The per-buyer recommendations below say who each one suits.

Who should buy which

Pick The Plunge if

Buyers who want a chillered cold plunge as one purchase: a 110V plug-and-play tub with 1 year coverage on both tub and chiller.

Skip if

You want sub-37°F temperatures, a 2-person tub, or premium cedar/metal aesthetics - see Renu Therapy or Morozko Forge.

Pick the Renu Therapy Aurelius if

A home buyer who would rather lie back than sit upright in a plunge, fits Renu's 6'7" and 275 lb limit, and has a level floor near a drain that can carry about 1,065 lbs, a dedicated 120V, 15A outlet within 12 feet, and 2 to 4 people to move a 297 lb tank off a pallet.

Skip if

You want someone to place the tank for a known fee, since delivery is curbside and Renu publishes no price for anything more; you want a real wood breath deck, because every combination on this listing is composite; or you need an ETL, UL or CSA listing in writing, which Renu does not publish for the Aurelius.

Go deeper

FULL REVIEW
Read The Plunge review →
FULL REVIEW
Read the Renu Therapy Aurelius review →

Frequently asked

Which is better, The Plunge or the Renu Therapy Aurelius?

We have not scored these two head to head, so this page does not name a winner. The Plunge starts at $8,490 and the Renu Therapy Aurelius at $9,999. The per-buyer recommendations below say who each one suits.

How much do they cost?

The Plunge: $8,490 to $8,990. Renu Therapy Aurelius: $9,999. Prices are verified against the manufacturer; check the live links for current pricing.

Who should buy which one?

The Plunge: Buyers who want a chillered cold plunge as one purchase: a 110V plug-and-play tub with 1 year coverage on both tub and chiller. Renu Therapy Aurelius: A home buyer who would rather lie back than sit upright in a plunge, fits Renu's 6'7" and 275 lb limit, and has a level floor near a drain that can carry about 1,065 lbs, a dedicated 120V, 15A outlet within 12 feet, and 2 to 4 people to move a 297 lb tank off a pallet.

Continue researching
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