It will also fit ALL jugs using the 'classic' universal water filter style cartridges such as; Boots, Tefal, Waymaster, Curver and Aquastream, as well as Laica classic and the Kenwood range of universal jug filters. The FilterLogic FL-601 cartridges deal efficiently with particulate, chlorine, heavy metals & limescale which will prevent the layer of scum forming on hot drinks. One cartridge lasts for approximately one month and filters around 100-150 litres of water, depending on your water hardness.