Best Cold Plunge Tubs · head-to-head

Luxury Spas / Sierra Spas Cold Plunge Pro XL vs Redwood Outdoors Alaskan All-In-One

A sourced, side-by-side comparison. Luxury Spas / Sierra Spas Cold Plunge Pro XL is cheaper at $5990. Every spec and price links to its source.

Which is better: the Luxury Spas / Sierra Spas Cold Plunge Pro XL or Redwood Outdoors Alaskan All-In-One?

On the specs we track, they're closely matched. The Luxury Spas / Sierra Spas Cold Plunge Pro XL is the cheaper at $5990.

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Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec Luxury Spas / Sierra Spas Cold Plunge Pro XL Redwood Outdoors Alaskan All-In-One
US price $5990 $6999
BrandLuxury Spas / Sierra SpasRedwood Outdoors
Released20232023
Msrp usd 5990 6999
Water capacity gal 160 104
Includes chiller Yes Yes
Min temp f 37 37
Chiller power hp 1 1.5
Interior length (in) 70
Interior depth (in) 23
Filtration Yes Yes
Wi-Fi app control Yes Yes
Tub material acrylic thermowood/hemlock exterior with acrylic liner
Insulated Yes Yes
Weight (lb) 360

Sources — Luxury Spas / Sierra Spas Cold Plunge Pro XL: sierraspa.com (verified 2026-06-23). Redwood Outdoors Alaskan All-In-One: redwoodoutdoors.com (verified 2026-06-23).

What's the difference between the Luxury Spas / Sierra Spas Cold Plunge Pro XL and Redwood Outdoors Alaskan All-In-One?

Where the two actually differ on the specs we track (4 of 12). Matching specs are omitted.

  • Msrp usd: Luxury Spas / Sierra Spas Cold Plunge Pro XL 5990 vs Redwood Outdoors Alaskan All-In-One 6999
  • Water capacity gal: Luxury Spas / Sierra Spas Cold Plunge Pro XL 160 vs Redwood Outdoors Alaskan All-In-One 104
  • Chiller power hp: Luxury Spas / Sierra Spas Cold Plunge Pro XL 1 vs Redwood Outdoors Alaskan All-In-One 1.5
  • Tub material: Luxury Spas / Sierra Spas Cold Plunge Pro XL acrylic vs Redwood Outdoors Alaskan All-In-One thermowood/hemlock exterior with acrylic liner

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