CG Air blowers are manufactured in Canada. There are two types widely used in hot tubs, a standard and a heated version. SLE MODEL: Since this economical blower was introduced on the market its reliability in high temperature and its long life brushes (1500 hours) has quickly made this powerful blower a favourite in the spa industry. SL0 MODEL: The SL0 model is the twin of the SLE but includes the air heater. Available to adapt to any Spa Pack or electronic control.