Please do a search on Hot Springs Jet Setter LX Saltwater hot tubs and you can find all of your technical answers better than I can tell you. It’s a great tub! It’s like new, rarely used and for sale because I don’t use it often enough to keep it. I need to pay some bills instead. What is the difference between the jetsetter and the jetsetter LX? The “LX” gives you a little extra height in the hot tub allowing you to have more leg room for that second person & offers a few more jet options than the original Jetsetter.