EONIX 1/2 HP Ice Bath Chiller
#2 in Up to 1/2 HPFull review
A cheap 1/2 HP kit for a large inflatable tub where 42 F is enough.
Amazon $449.99$449.99
The EONIX 1/2 HP Ice Bath Chiller is the better cold plunge chiller overall, rated 3.5 to 3.4. The EONIX 1/2 HP Ice Bath Chiller leads on value. The SereneLife 1/2 HP Chiller System wins on coldest. The EONIX 1/2 HP Ice Bath Chiller costs $433 less ($449.99 vs $882.99).
SereneLife 1/2 HP Chiller System
#5 in Up to 1/2 HPFull review
A basic 1/2 HP kit with pump and filter. Others at this price add ozone and wifi.
Amazon $882.99$882.99
Prices 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 EONIX 1/2 HP Ice Bath Chiller for value ($900 per HP ($449.99, 1/2 HP) vs $1,766 per HP ($882.99, 1/2 HP)).
- Choose the SereneLife 1/2 HP Chiller System for coldest (down to 39.2 °F vs down to 42 °F).
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 | SereneLife 1/2 HP Chiller System |
|---|---|---|
| Overall rating | 3.5/5 | 3.4/5 |
| Value 30% | 76 $900 per HP ($449.99, 1/2 HP) | 49 $1,766 per HP ($882.99, 1/2 HP) |
| Coldest 15% | 38 down to 42 °F | 72 down to 39.2 °F |
| Sanitation 10% | 50 filter | 50 filter |
| 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) | 50 warranty not published (neutral score used) |
Specifications
| EONIX 1/2 HP Ice Bath Chiller | SereneLife 1/2 HP Chiller System | |
|---|---|---|
| Cooling | ||
| Compressor | 1/2 HP | 1/2 HP |
| Lowest temperature | 42 °F | 39.2 °F |
| Largest tub | 132 gal | 132 gal |
| Water and build | ||
| Filter | Yes | Yes |
| Voltage | - | 120 V |