An entry-level chiller for a small one-person tub, best kept indoors.
Amazon $269.95
The easiest setup here for someone without a ported tub. Plan on cleaning the water yourself.
- 1/2 HPSize
- 39 °FColdest
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
- Drops into the water: no hoses, ports or pump to set up
- Wifi app with schedules
- Works in a bathtub, stock tank or inflatable
- No filter or sanitizer, so the water needs changing more often
- 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 | AS-AY500 |
|---|---|
| Cooling | |
| Compressor | 1/2 HP |
| Lowest temperature | 39 °F |
| Water and build | |
| App or wifi | Yes |
| Warranty | 1 year |
Alternatives in this size
A budget chiller for a small tub indoors, where 42 F is cold enough.
Amazon $279.99A plain 1/2 HP kit for tubs up to about 130 gallons.
Amazon $499.99Compare
Compare the PlungeFit Chiller Pro 1/2 HP Drop-in with any other cold plunge chiller →
More from PlungeFit: every PlungeFit product ranked.