AS ColdPlunge 1/3 HP Chiller
#12 in Up to 1/2 HPFull review
A compact all-in-one small chiller for a one-person tub.
Amazon $399$399
2.7/5
An outdoor-rated small chiller for a one-person tub in moderate heat. Its price is closer to 1 HP units from other makers.
- 1/3 HPSize
- 39 °FColdest
Check price at Amazon$999
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pre-order: announced but not shipping yet. The price shown is the pre-order price, and no independent tests can exist until it ships.
Pros
- Rainproof housing and GFCI cord made for an outdoor tub
- Built-in pump and washable filter, so it connects with just hoses
- Holds 39 F
Cons
- Pricey for a 1/3 HP unit
- No ozone, UV or app
- Cooling capacity not published
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | AACHO33HP |
|---|---|
| Cooling | |
| Compressor | 1/3 HP |
| Lowest temperature | 39 °F |
| Water and build | |
| Filter | Yes |
| Warranty | 1 year |
| Released | Pre-order |
Alternatives in this size
Active Aqua Chiller with Boost 1/2 HP
#13 in Up to 1/2 HPFull review
A plain, proven chiller for someone happy to plumb their own pump and filter. Most buyers will find an all-in-one kit easier.
Amazon $817.99$817.99
Ice Barrel Chiller
#15 in Up to 1/2 HPFull review
For Ice Barrel owners who want the matching app-controlled chiller. Anyone with another tub gets the same size compressor for far less elsewhere.
Ice Barrel $3,999.99$3,999.99
Compare
Compare the Active Aqua Outdoor Cold Plunge Chiller with any other cold plunge chiller →
More from Active Aqua: every Active Aqua product ranked.