This portable whirlpool tub inflates in minutes and has powerful jets that provide penetrating massage. With enough space for four adults, the spa has five adjustable hydro-massaging jets to soothe tired muscles, stimulate circulation, and ease tension. It has a built-in 900-watt heater that increases water temperature by 2° per hour. The spa sets up in three easy steps, and a filter system pumps 600 gallons per hour, keeping re-circulated water fresh. Fine-tune water temperature at the touch of a button on the control panel. Constructed of durable 24-gauge PVC, the spa's patented I-beam structure provides added rigidity. The heavy-duty inflatable lid prevents heat loss and has digital locks for safety, and a convenient drainage system empties the tub in 30 minutes. 15' cable plugs into AC. Includes electric pump and extra filter cartridge. 71" Diam. x 31 1/2" H. inflated. (115 lbs.)