AS ColdPlunge 1/3 HP Chiller + 100 Gal Upright Tub Bundle (DY300-XL100)
The only upright tub sold as a complete system here, and the only one whose shape is chosen to fit a bathroom rather than a backyard. Fewer gallons is the cheapest thing you can do about an under-sized chiller.
Strengths
- 100 gallons — the least water any kit here asks a 1/3 HP compressor to hold
- Upright shape published as fitting bathrooms, garages and smaller recovery spaces
- External pump and a 20-micron replaceable filter you can see and check without dismantling anything
- 10 mm EPE insulation published on reinforced PVC
- Submersible pump included for bathtub circulation as well
Trade-offs
- 100 gallons is still more than the 53-79 gallon ceilings published by standalone 1/3 HP chillers
- 42°F floor — the same warm tier as the other 1/3 HP kits
- Upright means knees up: no stretching out, and no second person
- No BTU, voltage, amperage or watts published; no port stated on the tub
- No tub dimensions, no fit height, no pulldown figure
| Who it's for | A complete system in a small room |
|---|---|
| Posture | Upright, seated |
| Construction | Inflatable walls |
| Published capacity | 100 gal |
| Filled water weight (computed) | about 834 lb at full fill |
| Insulation stated on the listing | Yes |
| Chiller port stated on the listing | Not published |
| Chiller included | Yes, 1/3 HP |
| Temperature floor (bundled chiller) | 42°F |
| Exterior footprint | Not published |
| Filtration | External pump, 20-micron replaceable cartridge |
| Warranty | 12 months |
Specifications as published by the manufacturer listing, read on October 9, 2026. Blank fields are specs the manufacturer does not publish.



