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500 vs Alaskan Plunge Tub

Ice Barrel 500 and Redwood Outdoors Alaskan Plunge Tub, compared on the figures their makers publish. The makers of both cold plunge tubs without a chiller state water capacities within 30% of each other.

The makers' figures side by side

The makers' figures side by side
SpecificationIce Barrel 500Redwood Outdoors Alaskan Plunge Tub
Indoor or outdoorworks in homes, apartments, gyms, and outdoor spaces—
Seats (maker's rating)—1 person
Outside dimensionsW 30.7” x H 42.1” x L 57.6”Exterior Diameter 37" Side Wall Height 40 ½"
Weight104 lbs. when emptyDry Weight 250 lbs
MaterialMade in the USA from recycled materials; the thick polyurethane foam insulation throughout the barrel and lidLiner Hard plastic; Wood Type Canadian Thermowood
Water capacity356 liters (94 gallons)Max Water Volume 130 gallons
ChillerChiller ports are 3/4″ NPT with 14 TPIChiller Type Chiller not included
WarrantyLimited lifetime warranty1-year limited warranty
Price on the maker's site$1,749.99 (icebarrel.com, 29 Sep 2026)$2,999 (redwoodoutdoors.com, 29 Sep 2026)

Each figure is the maker's own, as cited row by row on the 500 and Alaskan Plunge Tub pages and listed in the sources below. A dash means the figure is not on the maker pages we cite. Figures marked "about" are Saunakivi's unit conversions of the maker's figure.

Where to buy

Where the published figures differ

  • Outside dimensions: 500: W 30.7” x H 42.1” x L 57.6”. Alaskan Plunge Tub: Exterior Diameter 37" Side Wall Height 40 ½".
  • Weight: 500: 104 lbs. when empty. Alaskan Plunge Tub: Dry Weight 250 lbs.
  • Material: 500: Made in the USA from recycled materials; the thick polyurethane foam insulation throughout the barrel and lid. Alaskan Plunge Tub: Liner Hard plastic; Wood Type Canadian Thermowood.
  • Water capacity: 500: 356 liters (94 gallons). Alaskan Plunge Tub: Max Water Volume 130 gallons.
  • Chiller: 500: Chiller ports are 3/4″ NPT with 14 TPI. Alaskan Plunge Tub: Chiller Type Chiller not included.
  • Warranty: 500: Limited lifetime warranty. Alaskan Plunge Tub: 1-year limited warranty.
  • Price on the maker's site: 500: $1,749.99 (icebarrel.com, 29 Sep 2026). Alaskan Plunge Tub: $2,999 (redwoodoutdoors.com, 29 Sep 2026).

Figures we cite for only one of the two: indoor or outdoor (only Ice Barrel's cited pages give it); seats (maker's rating) (only Redwood Outdoors's cited pages give it). Ask the other maker before treating the two as equal on those points.

Read each one in full

Ice Barrel 500

Ice Barrel · cold plunge tub without a chiller · 94 gallons · for indoor or outdoor use

Sources

  1. 500 - Ice Barrel — Ice Barrel
  2. Alaskan Plunge Tub - Redwood Outdoors — Redwood Outdoors