J-400 Series

About the J-400 Series

The J-400 Collection is the pinnacle of Jacuzzi engineering. The patent-pending FX-IR therapy seat pairs hydromassage with infrared and red light therapy targeting the lower back for deep rejuvenation — Jacuzzi is the first and only brand to offer this technology. True Water nanobubble technology continuously releases trillions of oxygen-filled bubbles to scrub away contaminants and deliver sparkling, 99.999% chlorine-free water. SmartTub integration provides remote control through your phone, Alexa, or Siri using a cellular connection that’s simpler and more reliable than Wi-Fi, while Smart Heat Mode reduces standby energy consumption by up to 25%. The open-seated design gives you freedom to move between ergonomic positions, each engineered for targeted relief. An infinity-edge waterfall, MX jets for lower back massage, and RX specialty jets for full-body relaxation complete the experience. ClearRay Active Oxygen combines ozone and UV-C for hands-free water care with 5-stage filtration.

Key Features

• Infrared and red light therapy via FX-IR seat
• True Water nanobubble technology — 99.999% chlorine-free water
• SmartTub app with Smart Heat Mode (25% energy savings)
• 5-stage filtration for fewer water changes
• Open-seated design for unrestricted movement
• Infinity-edge waterfall with integrated LED lighting
• Multi-layer insulation for quiet, efficient operation
• Heat-pump ready for year-round energy-efficient use
• Deep relief MX and RX therapy seats