Renu Therapy Cold Stoic 3.0 leads on our weighted scoring by 1 points over Plunge Air. Plunge Air costs $7,409 less — about 65% — so the question is whether what Renu Therapy Cold Stoic 3.0 adds is worth that to you. They separate most on price (Plunge Air), overall score (Renu Therapy Cold Stoic 3.0) and chiller (Plunge Air) — those are the rows worth reading closely. In short: Renu Therapy Cold Stoic 3.0 for design-led buyers who want a long warranty; Plunge Air for renters and frequent movers who want a real chiller in a packable tub.
| 2 products | ![]() Plunge Plunge Air | ![]() Renu Therapy Renu Therapy Cold Stoic 3.0 |
|---|---|---|
| Price | $3,990 | $11,399 |
| Overall score | 7.4 | 8.4 |
| Minimum temperature (°F) | 37 °F | 37 °F |
| Chiller (HP) | 1/2 HP Standard Chiller (1 HP Pro Chiller Gen 2 optional) | 0.5 HP |
| Capacity (people) | 1 person | 1 person |
| Water volume (gal) | ~105 gal | 95 gal |
| Filtration | 20-micron filter | Dual-stage filtration |
| Sanitation | Ozone sanitation | Ozone |
| Noise (dB) | — | ~54 dB |
| Electrical | 110-120V, dedicated 15A circuit recommended | 110V / 20A |
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Plunge
Best for Renters and frequent movers who want a real chiller in a packable tub
Renu Therapy
Best for Design-led buyers who want a long warranty