The F1755 is the third and largest of three Fitness Spas that maintain Cal Spas' new fluid look and design. This 17-foot spa can seat up to five people and features a swimming lane against two powerful swim jets. The power of the jets is perfect for bathers looking for a good workout as the swim jets keep them in place for treadmill swimming. Bathers who want a traditional spa experience will enjoy the vigorous sensation of 55 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!