Strong Spas are luxurious, energy-efficient, and feature the most advanced technological breakthroughs in the industry. Our elegant, patented DURA-LAST™ cabinets are beautiful and durable. Unlike other spas, the Strong Spa cabinet requires no maintenance and will be just as beautiful years from now as the very first day. Wood frames will rot, warp, and fade. Steel frames will rust and weaken, but the DURA-LAST™ cabinet will never deteriorate and we guarantee it with the industry’s first lifetime warranty!