Thermo Lift 300 is the only cover lifting system that has earned the Arthritis Foundation's prestigious Ease of Use Commendation. It's for everyone who loves to enjoy their hot tub, but hates to struggle while with removing or replacing their cover. Simply fold back the first half of your spa's cover and give Thermo Lift 300 a little tug. The mighty pneumatic arm responds by lifting your entire cover off your spa.