Jacuzzi® J404L™ Hot Tub

Description

Introducing the new J404L™ hot tub, a compact yet uncompromising addition to the J4™ Collection. Defined by clean lines, a distinctive contemporary profile and an illuminated infinity-edge waterfall, it brings an architectural presence to smaller spaces without sacrificing performance or refinement.

Its uniquely configured interior is centred around side-by-side loungers, creating a deeply immersive environment designed for focused relaxation. Every element has been carefully considered to maximise comfort, depth and precision in a reduced footprint.

Integrated SmartTub^® connectivity provides intelligent control and monitoring, enhancing everyday ownership with seamless functionality.

True Water™ nanobubble technology comes as standard, producing beautifully clear water that is 99.9% chlorine-free and exceptionally soft to the touch.

The J404L™ stands among the most refined compact hot tubs available, delivering the same exacting standards of design, engineering and hydrotherapy as its larger counterparts.

The J404L™ features our exclusive Infrared + Red Light therapy system, integrating targeted Infrared heat into a dedicated therapy seat to complement powerful hydromassage. The J4™ Collection utilises two integrated Infrared emitters, focused on the lumbar region to deliver concentrated warmth to the lower back, while surrounding PowerPro^® jets provide adjustable massage across the body.

Developed in collaboration with medical experts, Jacuzzi^® Infrared and Red Light therapy is designed to maximise the clinically supported benefits of infrared treatment.

These benefits include:

•  Pain relief: Helps increase circulation to support muscle and joint comfort.
•  Improved skin health: Encourages collagen production and skin elasticity.
•  Repairing properties: Supports natural tissue repair and cellular renewal.
•  Wellbeing: Promotes relaxation, improved mood and better sleep quality.
•  Improved range of motion: Helps muscles feel looser and more flexible.
•  Regeneration: Encourages healthy cellular activity and energy production.

Learn more about Jacuzzi^® Infrared and Red Light therapy here

Engineered to deliver a deeply structured hydromassage experience, the J404L™ combines precision-placed Jacuzzi^® PowerPro^® jets with a seating layout designed for purposeful, full-body coverage.

The lounger provides continuous lower-body hydromassage, while upright seats target the back, lumbar and shoulders, creating distinct therapy profiles throughout the spa. Two Jacuzzi^® PowerPro^® MX jets positioned within the footwell deliver focused massage to the feet, enhancing lower-body coverage and introducing a reflexology-style experience.

A carefully calibrated mix of FX, FX-R, MX, NX and RX jet formations works across key muscle groups, producing a high-volume, low-pressure massage that feels smooth on the surface and deeply effective where it matters most.

At the core of every Jacuzzi^® hot tub is our Aqualibrium^® formula, balancing air and water through the ideal pump-to-jet ratio to ensure hydromassage remains powerful, consistent and refined in every seat.

Combining 70 years of world-leading innovation with advanced engineering, the J4™ Collection showcases patented Jacuzzi^® jet technology designed for precision and reliability.

Hydrotherapy benefits include:

•  Muscle relaxation: Helps ease tension and muscular stiffness.
•  Joint comfort: Supports reduced impact on joints during movement.
•  Improved circulation: Encourages healthy blood flow.
•  Stress reduction: Promotes relaxation and overall wellbeing.
•  Better sleep: Supports improved sleep quality.
•  Mobility support: Helps maintain flexibility and range of motion.
•  Skin cleansing: Warm water immersion helps open pores.
•  Reduced muscle tightness: Supports post-activity comfort.
•  Mental clarity: Encourages focus and relaxation.

Learn more about our unique approach to hydrotherapy here

Through decades of engineering expertise, we’ve refined our approach to creating the most energy-efficient hot tubs available today. By combining advanced control systems, SmartSeal™ multi-layer insulation and precision manufacturing, Jacuzzi^® continues to set the benchmark for energy-saving hot tubs.

Unlike other brands, Jacuzzi^® can accurately provide estimated average running costs for each model using exclusive SmartTub^® technology, based on real-world usage data.

All Jacuzzi^® hot tubs undergo rigorous testing by the California Energy Commission (CEC), which has found that, on average, they perform 22% more efficiently than the strict standards they set out.

Using our SmartTub^® app, we gather anonymised real-world usage data showing that the average Jacuzzi^® UK customer consumes approximately 5 kWh per day – equivalent to a family of four taking a 10-minute shower daily.*

*All °C temperatures are rounded to the nearest whole degree. This information was collected over two years from UK Jacuzzi^® hot tubs connected to SmartTub^® energy monitoring. The data shown represent the median and are based on the recorded sample size.

Learn more about Jacuzzi^® Energy Efficiency here