Buy from Polar Monkeys: Brainpod 2.0
Polar Monkeys' own page for the Brainpod 2.0. Not a paid link.
How cold does a cold plunge get?
The makers of 14 cold plunges here state a lowest water temperature, from 32°F to 41°F. These are the makers' own figures, quoted on each product page; Saunakivi has not measured any of them.
Read each figure as the maker's own statement for its chiller, published on its own site; Saunakivi has not measured any of them. Then compare the chiller, the electrical wording and the price on each product page, and narrow by warranty.
Picks by the numbers
Each pick is the product that comes first on one figure its maker publishes, with the next ones on that figure after it. Choosing which figures to rank by is our editorial choice; the order on each is the makers' own numbers. None is a judgement of quality, we have not tested these products, and whether we earn a commission on a product never decides a pick.
- Lowest temperature the maker states: Polar Monkeys Brainpod 2.0 (Polar Monkeys lists: 32°F / 0°C); Polar Monkeys ONE (Polar Monkeys lists: 32°F); Sun Home Cold Plunge Horizontal (Sun Home lists: 32°F); 1 more tie. Next on this figure: Plunge Chill 1HP Chiller + Tub(Plus) (36°F); then Canuck Cold Acrylic Tub & Chiller (37 - 104°F) and Canuck Cold Wood Tub and Chiller (37 - 104°F), 5 more at this figure.
- Largest water capacity (maker's figure): Canuck Cold Acrylic Tub & Chiller (Canuck Cold lists: 500L | 132 Gal). Among the 13 of 14 that list this figure. Next on this figure: Sun Home Cold Plunge Horizontal (128 gal); then Plunge Chill 1HP Chiller + Tub(Plus) (120 gallons).
- Lowest regular price on the maker's site: Sun Home Cold Plunge Vertical (Sun Home lists: $3,899 (sunhomesaunas.com, 29 Sep 2026)). Among the 9 of 14 that list this figure. Next on this figure: Sun Home Cold Plunge Horizontal ($4,099 (sunhomesaunas.com, 29 Sep 2026)); then Plunge Pod ($5,590 (plunge.com, 29 Sep 2026)).
- Longest stated warranty (on at least part of the product): BlueCube DROP Cold Plunge Tub (BlueCube lists: 3-year residential / 1-year commercial full coverage (parts + labor) · 10-year tub & frame (aluminum)). Among the 12 of 14 that list this figure. Next on this figure: Renu Therapy Cold Stoic 3.0 (5-Year Limited Warranty); then Polar Monkeys Brainpod 2.0 (Every Brainpod 2.0 comes with a 2-year limited warranty covering defects in materials and workmanship).
Where to buy the picks
Buy from Polar Monkeys: ONE
Polar Monkeys' own page for the ONE. Not a paid link.
Buy from Sun Home: Cold Plunge Horizontal
Sun Home's own page for the Cold Plunge Horizontal. Not a paid link.
See it at Canuck Cold: Acrylic Tub & Chiller
Canuck Cold's own page for the Acrylic Tub & Chiller. Not a paid link.
Buy from Sun Home: Cold Plunge Vertical
Sun Home's own page for the Cold Plunge Vertical. Not a paid link.
Buy from BlueCube: DROP Cold Plunge Tub
BlueCube's own page for the DROP Cold Plunge Tub. Not a paid link.
Every match (14)
Filter the matches by price on the maker's site, warranty, safety listing and where to buy.
Showing 14 of 14
- BlueCube DROP Cold Plunge Tub
Cold plunge with a chiller · BlueCube
BlueCube · cold plunge with a chiller · for outdoor use · 120 V supply
- $11,750 (bluecubebaths.com, 29 Sep 2026; the lowest-priced option)
- 3-year residential / 1-year commercial full coverage (parts + labor) · 10-year tub & frame (aluminum)
- Redwood Outdoors Denali All-In-One
Cold plunge with a chiller · Redwood Outdoors
Redwood Outdoors · cold plunge with a chiller · 80 gallons · 120 V supply
- $7,999 (redwoodoutdoors.com, 29 Sep 2026; the lowest-priced option)
- 1-year limited warranty
- Polar Monkeys Brainpod 2.0
Cold plunge with a chiller · Polar Monkeys
Polar Monkeys · cold plunge with a chiller · 85 gallons · 120 V supply
- $10,990 (polarmonkeys.com, 29 Sep 2026; the lowest-priced option)
- Every Brainpod 2.0 comes with a 2-year limited warranty covering defects in materials and workmanship
- Plunge Pod
Cold plunge with a chiller · Plunge
Plunge · cold plunge with a chiller · 87 gallons · for indoor or outdoor use · 120 V supply
- $5,590 (plunge.com, 29 Sep 2026)
- 1-year limited warranty
- Polar Monkeys ONE
Cold plunge with a chiller · Polar Monkeys
Polar Monkeys · cold plunge with a chiller · 90 gallons · 120 V supply
- $6,290 (polarmonkeys.com, 29 Sep 2026)
- 1-year limited warranty
- Plunge Chill Tub with Chiller
Cold plunge with a chiller · Plunge Chill
Plunge Chill · cold plunge with a chiller · 92 gallons · for indoor or outdoor use
- No price on the maker's site
- Renu Therapy Cold Stoic 3.0
Cold plunge with a chiller · Renu Therapy
Renu Therapy · cold plunge with a chiller · 95 gallons · 120 V supply
- No price on the maker's site
- 5-Year Limited Warranty
- Redwood Outdoors Alaskan All-In-One
Cold plunge with a chiller · Redwood Outdoors
Redwood Outdoors · cold plunge with a chiller · 104 gallons · 120 V supply
- $6,999 (redwoodoutdoors.com, 29 Sep 2026; the lowest-priced option)
- 1-year limited warranty
- Plunge All-In Gen 2
Cold plunge with a chiller · Plunge
Plunge · cold plunge with a chiller · 105 gallons · for indoor or outdoor use · 120 V supply
- $7,990 (plunge.com, 29 Sep 2026)
- 1-year warranty
- Sun Home Cold Plunge Vertical
Cold plunge with a chiller · Sun Home
Sun Home · cold plunge with a chiller · 106 gallons · for indoor or outdoor use
- $3,899 (sunhomesaunas.com, 29 Sep 2026)
- 1+ Year Warranty
- Canuck Cold Wood Tub and Chiller
Cold plunge with a chiller · Canuck Cold
Canuck Cold · cold plunge with a chiller · 111 gallons · for indoor or outdoor use · 120 V supply
- No price on the maker's site
- 12-Month Manufacturer Warranty
- Plunge Chill 1HP Chiller + Tub(Plus)
Cold plunge with a chiller · Plunge Chill
Plunge Chill · cold plunge with a chiller · 120 gallons · for indoor or outdoor use
- No price on the maker's site
- Sun Home Cold Plunge Horizontal
Cold plunge with a chiller · Sun Home
Sun Home · cold plunge with a chiller · 128 gallons · for indoor or outdoor use
- $4,099 (sunhomesaunas.com, 29 Sep 2026)
- 1+ Year Warranty
- Canuck Cold Acrylic Tub & Chiller
Cold plunge with a chiller · Canuck Cold
Canuck Cold · cold plunge with a chiller · 132 gallons · for indoor or outdoor use · 120 V supply
- No price on the maker's site
- 12-Month Manufacturer Warranty
Prices are the price each maker's own site showed in US dollars on the date shown; the seller's page has the current price. Warranties and safety listings are the makers' own statements, cited on each product page. A price starting 'From' is the cheapest configuration a maker offers, which may leave out the heater or options. Every product here is sold by its maker on the maker's own site. Where a product page carries a paid link (to Amazon or another approved retailer), Saunakivi may earn a commission; no sort order or filter favours those products. We have not tested these products.