Fox Plunge 1/3HP Ice Bath Chiller
#4 in Up to 1/2 HPFull review
An entry-level chiller for a small one-person tub, best kept indoors.
Amazon $269.95$269.95
The Fox Plunge 1/3HP Ice Bath Chiller is the better cold plunge chiller overall, rated 3.2 to 2.7. The Fox Plunge 1/3HP Ice Bath Chiller leads on value. The Active Aqua Outdoor Cold Plunge Chiller wins on coldest. The Fox Plunge 1/3HP Ice Bath Chiller costs $729.05 less ($269.95 vs $999).
Active Aqua Outdoor Cold Plunge Chiller Preorder
#14 in Up to 1/2 HPFull review
An outdoor-rated small chiller for a one-person tub in moderate heat. Its price is closer to 1 HP units from other makers.
Amazon $999$999
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 Fox Plunge 1/3HP Ice Bath Chiller for value ($818 per HP ($269.95, 1/3 HP) vs $3,027 per HP ($999, 1/3 HP)).
- Choose the Active Aqua Outdoor Cold Plunge Chiller for coldest (down to 39 °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 | Fox Plunge 1/3HP Ice Bath Chiller | Active Aqua Outdoor Cold Plunge Chiller |
|---|---|---|
| Overall rating | 3.2/5 | 2.7/5 |
| Value 30% | 80 $818 per HP ($269.95, 1/3 HP) | 28 $3,027 per HP ($999, 1/3 HP) |
| Coldest 15% | 38 down to 42 °F | 75 down to 39 °F |
| Sanitation 10% | 50 filter and sanitizer not stated (neutral score used) | 50 filter |
| Heating 10% | 50 heating not stated (neutral score used) | 50 heating not stated (neutral score used) |
| Noise 10% | 100 40 dBA | 50 noise rating not published (neutral score used) |
| Warranty 25% | 0 1-year warranty | 0 1-year warranty |
Specifications
| Fox Plunge 1/3HP Ice Bath Chiller | Active Aqua Outdoor Cold Plunge Chiller | |
|---|---|---|
| Cooling | ||
| Compressor | 1/3 HP | 1/3 HP |
| Lowest temperature | 42 °F | 39 °F |
| Largest tub | 53 gal | - |
| Water and build | ||
| Filter | - | Yes |
| Voltage | 120 V | - |
| Noise | 40 dBA | - |
| Warranty | 1 year | 1 year |
| Released | - | Pre-order |