Two years' worth of charcoal using a traditional Japanese Binchotan method for cleaner tasting water.Features: - Removes Chlorine- Adds Minerals- Natural Water Filter lasts for 6 monthsSpecifications:- It makes tap water taste clean, clear and delicious- x4 Binchotan active charcoal filters (6 months life each)- Vacuum packed individually, pre-washed and ready to use immediately- Can be used in our Water Good bottle, Water Carafe or any jug or bottle (*minimum spout opening 30mm / 1.2in)- Charcoal is an incredibly dense material, so please take care when dropping into glass bottles & jugs, we recommend only adding once bottle/jug is full- Our charcoal is made from natural wood sticks and dimensions vary (15 to 28mm diameter, maximum length 118mm)