The Sun Home Cold Plunge™ - Horizontal delivers a true ice-bath experience with a powerful 1HP smart chiller that cools water all the way down to 32°F. Drop in for the deep cold immersion routine that helps reduce muscle soreness, sharpen mental clarity, and boost overall well-being.

Equipped with advanced filtration and ozone sanitation, the chiller keeps water crystal-clear plunge after plunge. Cold-water therapy in this tub may help support your immune system, stimulate circulation, activate brown adipose tissue, and promote the kind of deep rest that improves sleep quality. Complete control sits at your fingertips through the intuitive mobile app, so you can dial in your ultimate cold immersion experience anytime, anywhere.

Let the world's #1 portable ice bath be your secret weapon for performance, recovery, and resilience.

Still deciding? Compare this model against every cold plunge tub in our collection to find the right fit for your recovery routine.

Named Best Inflatable Cold Plunge and Ice Bath of 2025 by Fortune, Variety, Men's Journal, and Billboard Magazine.

"The portable tub operates three times faster than its competitors at the same price point. Plus, you can control it from anywhere with the mobile app." — Billboard Magazine

Key Features

• High-output smart chiller built for fast, consistent cool-downs at this price point.
• Cools to 32°F for an authentic ice-bath plunge (final temp depends on ambient conditions).
• Energy-efficient cooling drives water down to plunge temperature in hours, not days.
• Mobile app-enabled via Wi-Fi (2.4 GHz) — control temperature and schedule sessions from anywhere through the Sun Home Saunas or Tuya app.
• Indoor or outdoor use, perfect for contrast therapy paired with one of our cold plunge tubs and a sauna session.
• Spacious full-body inflatable tub with a roomy horizontal layout for full submersion.
• Built-in ozone injection sanitation to keep water clean between filter changes.
• 20-micron paper sediment filter plus a metal inlet screen capture hair, debris, and microscopic particles.
• Insulated tub and lid conserve energy and hold water temperature between sessions.
• No plumbing required — plug into a standard 110–120V GFCI outlet and plunge.
• Backed by a 1-year manufacturer warranty.

Specifications for the Portable Cold Plunge Tub

• Form factor: Horizontal inflatable tub with standalone chiller
• Tub outer dimensions: 6.4 ft × 2.3 ft × 2.1 ft (L × W × H)
• Tub interior: 69" × 19.5" × 23.5"
• Chiller dimensions: 21.2" × 15.7" × 21.7"
• Water capacity: 80–90 gallons (300–350 L)
• Temperature range: 32°F – 107°F (cools and heats)
• Timer: 30 to 60 minutes
• Power requirements: 110–120V, 11A — plugs into a standard GFCI wall outlet
• Noise level: 55–60 dB (comparable to a window AC unit)
• Circulation: Built-in self-priming system
• Operation: Can run 24/7

Minimum and maximum water temperatures are influenced by ambient outdoor conditions.

What's Included

• Insulated protective tub cover with lid
• Smart chiller with heating + cooling
• Inflatable plunge tub
• Air pump for quick inflation
• Inlet and outlet water hoses with rubber gaskets
• Metal hair/debris screen filter (pre-installed at the inlet)
• Spare 20-micron paper sediment filter
• Plastic filter wrench for paper-filter changes
• Repair kit for simple punctures and patches
• Durable carrying case for easy transport