The F1257 is the first of three Fitness Spas that maintain Cal Spas' new fluid look and design. This 12-foot spa can seat up to five people and features a swimming lane against four whirlpool jets. The power of the jets is perfect for bathers looking for a leisurely swim as the whirlpool jets keep them in place for treadmill swimming. Bathers who want a traditional spa experience will enjoy the vigorous sensation of 57 spa jets massaging key areas of their body. It's easy to warm up and cool down after your exercise without having to leave the hot tub!