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
1/3 HP42 °F
2.9/5
A cheap app-controlled chiller for a small tub where 42 F is cold enough.
- 1/3 HPSize
- 42 °FColdest
Check price at Amazon$419
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Wifi app with schedules at a low price
- 20 micron external filter
- Submersible pump included for bathtubs
Cons
- Only gets to 42 F
- 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
| Cooling | |
|---|---|
| Compressor | 1/3 HP |
| Lowest temperature | 42 °F |
| Water and build | |
| Filter | Yes |
| App or wifi | Yes |
| Warranty | 1 year |
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 $727.17$727.17
1/2 HP
The Pod Company Standard Chiller
#15 in Up to 1/2 HPFull review
A simple small chiller for owners of Ice Pod tubs who want cold water without ice.
Amazon $569$569
1/3 HP41 °F
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