The American Standard EverClean 6 ft. Whirlpool Tub incorporates a patented antimicrobial additive molded directly into the water circulation piping to inhibit the growth of mold and mildew on the pipes. This exclusive feature will keep your whirlpool tub cleaner, longer. You will be able to relax further knowing that The Limited Lifetime Warranty covers parts and In-Home labor. This whirlpool tub features 10 whirlpool jets, 3 air volume controls for an optimal massage therapy, and 2 molded-in armrests and an integral lumbar support, providing you with greater comfort while bathing. The ledge mounted overflow provides the deepest soaking depth (must order drain separately).