It's our exclusive Master Blaster Foot Therapy System. With dual Master Blaster jet clusters, each with 15 individual nozzles, for a total of 30 powerful jets. Plus, there's a powerful 3 hp pump dedicated entirely to treating your feet to more than 200 gallons per minute of soothing jet action. All working together to give you the full benefits of a therapeutic massage. Now, with the Master Blaster, your achy-breaky feet will sing for joy.