WHITEHALL stainless steel whirlpools have a single ½ horsepower motor to drive the agitation, spot spray and emptying operations. Dial varies the degree of agitation by controlling the amount of air introduced into the water. The agitator can be raised and lowered on its shaft to change the directional flow; can be removed from the shaft if service is needed. Comes with thermometer. Tank can be emptied through the gravity drain or by using whirlpool turbine assembly and drainage hose. lo-boy whirlpools are long and shallow units are designed for easy access. Lower height for pediatric and geriatric patients requiring hydrotherapy treatment and can provide treatment of various extremity regions along hip and back areas. Hi-boy whirlpools offer complete coverage to the back, hip and shoulder areas. If full immersion is not desired, an optional adjustable suspension seat can be utilized. When coupled with the optional tank top seat, unit can be used to treat lower extremities.