Renu Therapy Cold Stoic 3.0 leads on our weighted scoring by 0.7 points over Aquavoss AV-2 Hot Tub & Cold Plunge. Renu Therapy Cold Stoic 3.0 costs $601 less — about 5% — so the question is whether what Aquavoss AV-2 Hot Tub & Cold Plunge adds is worth that to you. They separate most on price (Renu Therapy Cold Stoic 3.0), overall score (Renu Therapy Cold Stoic 3.0) and minimum temperature (Renu Therapy Cold Stoic 3.0) — those are the rows worth reading closely. In short: Renu Therapy Cold Stoic 3.0 for design-led buyers who want a long warranty; Aquavoss AV-2 Hot Tub & Cold Plunge for contrast-therapy households wanting hot and cold in one unit.
| 2 products | ![]() Renu Therapy Renu Therapy Cold Stoic 3.0 | |
|---|---|---|
| Price | $12,000 | $11,399 |
| Overall score | 7.7 | 8.4 |
| Minimum temperature (°F) | 39 °F (cold plunge zone) | 37 °F |
| Chiller (HP) | — | 0.5 HP |
| Capacity (people) | 2-person cold plunge (4-person hot tub) | 1 person |
| Water volume (gal) | 165 gal cold plunge + 285 gal hot tub | 95 gal |
| Filtration | Triple-filtration with two 20-micron pleated filters | Dual-stage filtration |
| Sanitation | Self-cleaning ozone | Ozone |
| Noise (dB) | 48 dB chiller | ~54 dB |
| Electrical | 220V hard-wired (hot tub) + standard 110V (cold plunge) | 110V / 20A |
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Aquavoss
Best for Contrast-therapy households wanting hot and cold in one unit
Renu Therapy
Best for Design-led buyers who want a long warranty