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
The SereneLife 1/2 HP Chiller System is the better cold plunge chiller overall, rated 3.4 to 3.3. The SereneLife 1/2 HP Chiller System leads on coldest. The Fox Plunge 1/2HP Cold Plunge Chiller wins on value. The Fox Plunge 1/2HP Cold Plunge Chiller costs $433.04 less ($449.95 vs $882.99).
Fox Plunge 1/2HP Cold Plunge Chiller
#6 in Up to 1/2 HPFull review
A cheap, quiet 1/2 HP kit for a large inflatable tub where 41 F is cold enough.
Amazon $449.95$449.95
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 SereneLife 1/2 HP Chiller System for coldest (down to 39.2 °F vs down to 41 °F).
- Choose the Fox Plunge 1/2HP Cold Plunge Chiller for value ($900 per HP ($449.95, 1/2 HP) vs $1,766 per HP ($882.99, 1/2 HP)).
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 | SereneLife 1/2 HP Chiller System | Fox Plunge 1/2HP Cold Plunge Chiller |
|---|---|---|
| Overall rating | 3.4/5 | 3.3/5 |
| Value 30% | 49 $1,766 per HP ($882.99, 1/2 HP) | 76 $900 per HP ($449.95, 1/2 HP) |
| Coldest 15% | 72 down to 39.2 °F | 50 down to 41 °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) | 100 40 dBA |
| Warranty 25% | 50 warranty not published (neutral score used) | 0 1-year warranty |
Specifications
| SereneLife 1/2 HP Chiller System | Fox Plunge 1/2HP Cold Plunge Chiller | |
|---|---|---|
| Cooling | ||
| Compressor | 1/2 HP | 1/2 HP |
| Lowest temperature | 39.2 °F | 41 °F |
| Largest tub | 132 gal | 132 gal |
| Water and build | ||
| Filter | Yes | Yes |
| Voltage | 120 V | - |
| Noise | - | 40 dBA |
| Warranty | - | 1 year |