Waterdrop Water Filter Cartridges,Replacement for Brita Kettle Universal Filter

And Marella system, all old Brita all series of jugs. Not fits Waterdrop, Aqua Optima. to replace your filter every 1 month, which will vary based on your water quality. · Certified by TÜV SÜD, NSF: Our filter is tested and certified by TÜV SÜD for the reduction.