BWT 2.7 Litre Mineralised Water Filter Jug and 3 x Gourmet MG2+ Filters Easy control: It automatically determines exactly when to change the filter For tea and coffee with great taste and full bodied aroma, thanks to the patented Mg 2+ technology. Used for pure water with magnesium, without harmful, taste altering substances (e.g. chlorine, copper, lead) Provides long term protection against limescale in household appliances What is in the box? 1 x BWT 2.7 Litre Mineralised Water Filter Jug 3 x BWT Gourmet MG2+ Mineralised Water Filter Important customer notice: Each filter will filter around 120L (4057 oz). The changing of the filter will be around every 4 weeks depending on usage. The filter will not fit a BRITA filter jug! The jug holds in total 11 (8 ounce) cups bearing in mind that it includes the filtering of the water.