Enjoy the taste of freshly BRITA filtered water anywhere. BRITA's compact filter technology significantly reduces chlorine, other taste impairing substances and fine solids. The BRITA Filter Disc fits in fill&serve carafes for home and office as well as fill&go bottles for on the go. - One BRITA Fill&Go Filter Disc lasts for 4 weeks- Refill pack with 3 Filter Discs corresponds to 12 weeks of usage- Optimised water flow for easier drinking from Water Filter Bottles- Fits in the new BRITA fill&go Vital Water Filter Bottle and fill&serve Water Filter Carafe- Does not fit in first generation fill&go bottles or fill&go classic bottles. Please refer to the pictures above for compatible models.