Our filters are available in packs of 1, 3 and 6. Buying in bulk – in packs of 3 or 6 – offers you an attractive volume discount and saves you from having to reorder frequently. Unopened filters have a shelf life of at least 2 years when stored in a dry, dark place. Once inserted into the carafe, a filter can be used for up to 4 weeks or 150 litres, as recommended.