A strong 1 HP pick for a big tub or a hot climate, with ozone and app control included. Check the warranty with the seller before buying.
Amazon $1,299
The cheapest way here to a big cooling number, for large tubs in warm places.
- 1 1/2 HPSize
- 10,500 Btu/hCooling
- 36 °FColdest
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
- 10,500 Btu of cooling for under $800
- Gets down to 36 F
- App control and timers
- No ozone or UV
- One-year warranty
- Few details on the filter and pump
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 | GTMF-B30Y |
|---|---|
| Cooling | |
| Compressor | 1 1/2 HP |
| Cooling capacity | 10,500 Btu/h |
| Lowest temperature | 36 °F |
| Water and build | |
| Filter | Yes |
| App or wifi | Yes |
| Warranty | 1 year |
Alternatives in this size
A full-featured hot and cold 1 HP chiller for tubs of 100 gallons or more, at a premium price.
Amazon $2,499.99A hot and cold unit with ozone and wifi, but cheaper chillers publish more and promise as much.
Amazon $2,699Compare
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