What is the difference between an air injector and a jet?
As you look at hot tubs you’ll find a wide variety of different jets. The common thread is that they are located throughout a spa and they all mix air with pressurized water to produce a massaging effect. Many jets are interchangeable and often adjustable so the spa bather can customize his/her massage. Air injectors are not massage jets, although they are often described as such. They are generally located in the seat areas and, when activated, create a turbulent bubbling or boiling action which is pleasant, but does not provide a massage. If the tub you are looking at seems to have a lot of jets for the money check that they are indeed massage jets and not just air injectors.
