Grey 216* 71cm hot tub. A swimming pool with heating, bubble massage, ambient lighting, filtration, 559953491. The pool is 216 * 71cm, and the pool body and machine are integrated. The machine is installed. 2. Water circulation heating, low water level heating PTC emptying system. 3. External integrated water filtration system can maintain clean water quality. 4. Built in ambient light with 6 colors and 7 transitions: green, red, yellow, blue, purple, white. 5. The wave making function has three gears, the first press is the maximum gear of gear 3, followed