It's inside, under the middle cover. Jintaichang foot bath products adopt the latest international heating elements and double thermal protection devices, which are fast, safe and reliable in heating, equipped with microcomputer wireless remote control, and can soak the middle of the calf with double display on color screen. The filter screen is located under the cover in the middle of the foot bath. Founded on 20 10, the brand of foot bath tub under Jintaichang Shanghai Taichang Health Technology Co., Ltd. is located in Shanghai, and is an enterprise mainly engaged in wholesale industry.