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
2.5/5
For Ice Barrel owners who want the matching app-controlled chiller. Anyone with another tub gets the same size compressor for far less elsewhere.
- 1/2 HPSize
- 37 °FColdest
Check price at Ice Barrel$3,999.99
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- App control lets you set the temperature before you get home
- Holds water as cold as 37 F
- Runs in ambient air up to 120 F, so it copes with a hot garage or patio
- Made to bolt onto an Ice Barrel 300, 400 or 500
Cons
- Costs several times as much as other 1/2 HP chillers
- Cooling capacity is not published
- No ozone or UV sanitizer
- 65 lb, plus $300 shipping
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 | IB/CHIL/MET/BL |
|---|---|
| Cooling | |
| Compressor | 1/2 HP |
| Lowest temperature | 37 °F |
| Refrigerant | R290 |
| Water and build | |
| Filter | Yes |
| App or wifi | Yes |
| Voltage | 120 V |
| 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 $817.99$817.99
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
Compare
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