The Hydrolift™ essentially makes a whirlpool function as two whirlpools in one, allowing you to treat lower and upper extremities with the same unit. One can raise the mobile extremity and podiatry whirlpool to any height up to 3 feet off the floor. By turning the handles, one can raise the whirpool quickily and easily. Whitehall P-10-M Mobile Whirlpools are recommended for treatment of the foot and ankle area, and when provided with a raised undercarriage, may also be used in treatment of the upper extremities.