The Bobble 1 Litre Water Bottle features a filter to make tap water taste cleaner and purer.The Bobble Water Bottle is made from recycled plastics and much more economical and environmentally friendly than buying single-use bottles.The bottle features an activated carbon filter that attracts chemicals and impurities, removing them from your drinking water.The filter lasts for approximately 150 refills before it needs replacing, so you can enjoy fresh, pure water drink after drink.Kinder to the environment, enjoy fresh tasting water with the Bobble 1 Litre Water Bottle.