Key BenefitsThermoLock IV insulation for lower energy costs. Programmable Filter Cycle for maximum flexibility. Galvalume structure and Sealed bottom pan for greatest durability and longitivity. Zone Therapy for therapist like muscle relief. Foot Relief Zone ® targets feet with invigorating streams of water providing body wide relaxation. Standard Feature(s)100% Filtration 56 Frame Pump ABS Sealed Pan Comfort Collar ® Contoured Pillows DuraMaax Exterior Easy Touch Controls Galvalume ® Steel Sub Structure