This contemporary and modern rectangular drop-in bathtub maintains a strong and clean linear design, with dual tub length armrests and a nicely sloped lumbar support wall for bathing comfort. The bubble massage air system delivers warm air bubbles to caress your entire body. The air system takes surrounding air, heats it, and infuses it into the bath, relaxing muscles and leaving you feeling refreshed. Customize the experience by adjusting the intensity from a soothing effervescent touch to a more spirited massage.