This built-in rectangular whirlpool bathtub delivers a premium at-home SPA experience for your bathroom. Made of eco-friendly acrylic with seamless one-piece molding, it resists yellowing over time, has no sanitary dead corners, and allows for easy daily maintenance. The bathtub features a multi-layer thickened composite structure with excellent heat retention to maintain water temperature for long soaks; its surface is skin-friendly with a mild, non-chilly touch. Equipped with a full-coverage hydrotherapy whirlpool massage system and multiple air bubble jets, it releases gentle water flow to soothe sore muscles and relieve fatigue. The 90° vertical skirt design enables tight wall installation, and rounded corners prevent bumps and injuries. The deep basin supports full-body immersion to keep your shoulders and neck warm. The ergonomic sloped backrest offers comfortable support, and the spacious interior lets you stretch freely. It comes with practical accessories: a high-density PU pillow for head support, a filtered suction inlet to block debris, a plated overflow outlet, and a thickened brass chrome pop-up drain that prevents clogs and odors. It also features constant temperature control for stable water temperature and a robust load-bearing structure for long-lasting reliability, bringing you both daily bathing and relaxing SPA enjoyment.