Buy the Only H2O Bottle with carbon filter and drink tastier and healthier water. Just pour tap water into this Only H2O bottle and gently push the drinker while drinking. The carbon filter reduces chlorine and its odor and captures impurities contained in tap water. One filter lasts approximately 300 refills. The Only H2O bottle with a carbon filter also has a great shape, it fits well in a training bag or bike rack. Diameter: 7.5 cm Height: 21.5 dm.