The model and serial number is located in three places: On a label located on the back page of your Operating/Installation Instructions. (With the warranty information) On a white label located on the bath vessel near the pump/motor.

How do I know what kind of jet tub I have?

The main distinguishing feature that sets the two apart is the mechanism by which the jets operate. Simply put, a whirlpool shoots jets of water while an air tub uses jets of air. This can have several implications in regards to upkeep, function and personal preference. The most noticeable difference is the sensation.

Where is jacuzzi serial number?

You'll need the serial number of your hot tub, which can be found on a label on your warranty package envelope, or on the inside of the spa cabinet in the equipment area (remove the equipment door).