Patented Curvilinear Design
In 2002, D1 didn’t just break the mold, we shattered it! We unveiled the world’s first hot tub that features an organic, curvaceous shape…a unique curvilinear design that’s closely attuned to the exacting standards of our most discerning customers. The sensuous, wrap-around design was so different, so unique, that we received US patents: D484,607 & 6,839,919 for it!