A cheap 1/2 HP kit for a large inflatable tub where 42 F is enough.
Amazon $449.99The EONIX 1/2 HP Ice Bath Chiller is the better cold plunge chiller overall, rated 3.5 to 3.4. The Healcryo 0.5 HP Ozone Chiller wins on coldest and sanitation. The EONIX 1/2 HP Ice Bath Chiller costs $46.96 less ($449.99 vs $496.95).
A low-cost way to keep a small one-person tub cold with ozone included.
Amazon $496.95Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Healcryo 0.5 HP Ozone Chiller for coldest (down to 38 °F vs down to 42 °F) and sanitation (filter and ozone vs filter).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every up to 1/2 HP cold plunge chiller; a clear win is highlighted. How we rank explains each one.
| Factor weight | EONIX 1/2 HP Ice Bath Chiller | Healcryo 0.5 HP Ozone Chiller |
|---|---|---|
| Overall rating | 3.5/5 | 3.4/5 |
| Value 30% | 76 $900 per HP ($449.99, 1/2 HP) | 72 $994 per HP ($496.95, 1/2 HP) |
| Coldest 15% | 38 down to 42 °F | 88 down to 38 °F |
| Sanitation 10% | 50 filter | 85 filter and ozone |
| Heating 10% | 50 heating not stated (neutral score used) | 50 heating not stated (neutral score used) |
| Noise 10% | 50 noise rating not published (neutral score used) | 50 noise rating not published (neutral score used) |
| Warranty 25% | 50 warranty not published (neutral score used) | 0 1-year warranty |
Specifications
| EONIX 1/2 HP Ice Bath Chiller | Healcryo 0.5 HP Ozone Chiller | |
|---|---|---|
| Cooling | ||
| Compressor | 1/2 HP | 1/2 HP |
| Cooling capacity | - | 4,000 Btu/h |
| Lowest temperature | 42 °F | 38 °F |
| Largest tub | 132 gal | 52 gal |
| Water and build | ||
| Filter | Yes | Yes |
| Sanitizer | - | Ozone |
| App or wifi | - | No |
| Voltage | - | 120 V |
| Warranty | - | 1 year |
