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Head-to-head buyer guide
Plunge The Pro Plunge vs Renu Therapy Cold Stoic Pure
Specs, prices, editor verdict, and who should buy which — compared side-by-side.
By Ryan · Editor & Founder
Published May 3, 2026
The verdict
Renu Therapy Cold Stoic Pure wins on editor score (9.1 vs 8.5). See the per-buyer recommendations below — winners on score don't always win on fit.
Side-by-side specs
| Spec | Plunge The Pro Plunge | Renu Therapy Cold Stoic Pure |
|---|---|---|
| price | $8,990–$9,990 | $13,995–$14,995 |
| cooling | chiller | chiller |
| min temp f | 39 | 34 |
| capacity | 1-person | 1-person |
| dimensions | 67″ × 31.5″ × 24″ | 78″ × 36″ × 30″ |
| water gallons | 105 | 110 |
| weight lb | 150 | 320 |
| power | 110V / 15A | 110V / 15A |
| construction | fiberglass | cedar |
| tub warranty months | 24 | 60 |
| chiller warranty months | 24 | 36 |
Who should buy which
Pick the Plunge The Pro Plunge if
Buyers who want the safest single-purchase cold plunge — plug-and-play, large service network, and category-leading installed base.
Skip if
You want sub-39°F temperatures, a 2-person tub, or premium cedar/metal aesthetics — see Renu Therapy or Morozko Forge.
Pick the Renu Therapy Cold Stoic Pure if
Premium-aesthetics buyers who want sub-39°F temperatures, the longest warranty in the category, and a tub that reads as architecture.
Skip if
You're budget-constrained, want apartment-friendly install, or don't care about premium materials.