Inergize Spire Elite vs Plunge Pro
Inergize Spire Elite and Plunge Pro finish level on our weighted scoring, so the decision here is about fit rather than ranking. Inergize Spire Elite costs $1,000 less — about 11% — so the question is whether what Plunge Pro adds is worth that to you. They separate most on price (Inergize Spire Elite), minimum temperature (Inergize Spire Elite) and chiller (Plunge Pro) — those are the rows worth reading closely. In short: Inergize Spire Elite for a furniture-grade vertical plunge with seated comfort; Plunge Pro for buyers who want a commercial-grade separate chiller.
Minimum temperature:Inergize Spire EliteChiller:Plunge Pro
| 2 products |  Inergize Inergize Spire Elite |  Plunge Plunge Pro |
|---|---|---|
| Price | $7,990 | $8,990 |
| Overall score | 8.3 | 8.3 |
| Minimum temperature (°F) | 37 °F (heats to 104 °F in hot tub mode) | 37 °F |
| Chiller (HP) | 0.8 HP industrial Elite chiller (modular, on casters) | 1.0 HP (Pro Chiller Gen 2) |
| Capacity (people) | — | 1 person |
| Water volume (gal) | 120 gal | ~105 gal |
| Filtration | 4-way filtration: strainer, 20-micron filter, continuous ozone, air-intake filter | Micron filter |
| Sanitation | Continuous ozone, 400 mg/hr output, automated cycles | Ozone |
| Noise (dB) | — | ~57 dB |
| Electrical | Standard 120V / 60Hz / 15A grounded outlet; 890W active draw | 110V |
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Inergize
Inergize Spire Elite
Best for A furniture-grade vertical plunge with seated comfort
$7,990$9,490
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