Disc filter contains a spiral structure, the high-speed rotation of the water during filtration to remove dirt from the disc filter, so that there is a separation of sand particles, resulting in a good filtration effect
1. used high quality 18/8 stainless steel, never rust. keep hot and cold more than 24 hours. no sweat outside. 2. The travel water bottle comes with a leak proof, insulated, BPA free cap. The stainless steel lid will prevent any accidental spills. 3. New