Most manufacturers have only small eye-ball jets that only reach the lower half of the 
torso.  Aquatic makes a combination of spa type jets that really give you a full body
therapeutic bathing experience.  Aquatic tubs are also deeper than average so that
more of your body is submerged. Below is a brief explanation of each of Aquatic's 
jets.  For a more thorough explanation, please visit this page from Aquatic. xxxxx 

The Pressure-Flo jet is adjustable both in direction and in volume.
This jet is removable for Dishwasher Cleaning and some of these can be found
on the Infinity, Century, Luxury, and Gallery Series models.

The recessed Rotary Massage jet is designed to massage the lower back.  It
is fully adustable.  By turning the jet face ring, you can adjust the air and water
pressure.  Another adjustment of the jet nozzle allows you to vary the circular
pattern from small to large.  Some of these jets are standard on the Millenium,
Infinity, Century, Luxury and Gallary Series in combination with other jets.  This
jet is removable for Dishwasher Cleaning.

The stacked Rotary Massage jets are available on some models of the Mellenium
Infinity, and Century Series.

The combination of two volume adjustable spinning StressEaz jets and a
 Fan Jet.  The StressEaz jets are removable and dishwasher safe.  The Fan Jet 
gives a wonderfull fluttery massage and is not removable.  This combination is 
available on some Century models

A powerfull combination of two volume adjustable spinning StressEaz jets and a
recessed Rotary Massage jet.  The StressEaz jets can be turned completely off
for a shallower bathing experience.  All jets come out for easy cleaning and are 
dishwasher safe.  Standard on most Luxury models.

The combination of a Fan Jet and a Rotary Massage jet for the upper and lower
back. Standard on many Century series whirlpools.

The Shiatsu Massage System
This wonderful back massage system features twelve jets, 4 of which spin, that
can be sequenced to move up and down your back in varying speeds.  The system
can be paused when you reach a particularly soothing combination.  This system 
is standard on the Infinity Series.

This standard eyeball jet comes on the builder series. 

The Rotary Massage Elite is a smaller version of the Rotary Massage.  It is stack-
ed on the second lounger of the Infinity IV, V, and VI.

Featured  in the Infinity IV, V, VI and VII, this air bath system releases tiny, warm
air bubbles.

Thousands of pre-warmed air bubbles burst upward from 58 to 82 air jets in the 
Serenity Series.

Remove any Pressure-Flo Jet and screw in The Hand Held Jet. This jet provides
a wonderfull massage for sore knees and other hard to reach areas.  Each hand
held jet comes with two nozzles for two types of massage action.  This jet will 
work with the Millenium, Infinity, Century, Luxury and Gallery Series.

Pulsating Neck Jet Pillow  Only available in the Infinity Series, this pillow uses 
warm water from the tub and a spinning jet to give you a relaxing neck massage. 
Force can be adjusted by lifting the bottom of the pillow and turning the outside
jet ring.