120 airjets release thousands of heated bubbles that surround and support the body in a warm massage;Automatic and manual purge cycles remove residual water from air channels after use;Variable-speed blower lets you adjust massage intensity to 18 levels;Comfort Depth design offers a convenient 19" step-over height while retaining the same depth as a standard 21" bath;Integral lumbar support;Slotted overflow allows for deep soaking;Textured bottom surface;Coordinates with other products in the Archer collection;Built-in 600W BubbleMassage heater warms humidified air before it enters the bath