Obsolete. Zodiac Spa Ozonators were commonly supplied with spas in the 2000s. They had an operating life of 2-5 years, so would no longer be producing ozone anymore, and must be upgraded. These have been obsolete for a number of years. Ozone generators can reduce chemical usage from 50-90%.
These were made for spas with a volume of 1,000-1,500 litres the Zodiac Spa Ozonator has its own internal pump to add ozone to the spa independently of the other equipment 24/7. Ozone is an extremely powerful oxidiser and as an added benefit kills viruses.