The Therapool D fitness spa is a good size spa for working out or family fun. It is loaded with high end features and comes a little deeper than the Therapool SE at 153cm. The added depth makes all the difference if you wish to do a lot of swimming in your spa. It comes as standard with LED waterline lighting and the H2Xercise System for rowing and strength training. With over 50 jets in total and 3 of the high performance flow stream swim jets providing resistance for training swimming this spa has something for everyone.