SaunaLife Model S1B Cold Plunge & Hot Immersion Tub — Black, 1 Person

The same one-person cold plunge and hot soak as the S1N, in the dark finish. Fill it cold for recovery, or run it warm when you want the opposite.

A note on the colour, because photographs oversell it: the exterior is a charcoal stain on thermo-spruce, not an opaque black. The grain reads through it and in daylight it sits closer to graphite. The interior shell is genuinely black. If you want true black, it isn't this — but the stained finish weathers more gracefully than paint and shows less dust.

The tub is contoured fiberglass holding 124 gallons, shaped to let one person sit submerged to the shoulders without bracing against a flat wall. Thermo-spruce is heat-treated rather than chemically treated, dimensionally stable through freeze-thaw, and rated to outlast cedar roughly two to one outdoors. Matching steps included.

Arrives assembled. Level pad, drain connection, done. Three-quarter-inch NPT chiller connections are built in, so temperature control can be added later.

Specifications

• Capacity: 1 person, 124 gallons
• Exterior: 40" diameter x 41.3" H
• Interior: 34.4" diameter x 36" H
• Weight: 124 lbs empty
• Surround: thermo-spruce, charcoal stain
• Interior: contoured fiberglass, black
• Chiller connections: 3/4" NPT
• Ships assembled, palleted LTL