Britas MAXTRA+ filters are compatible with all BRITA jugs (classic range excluded). This pack provides an eight months supply of MAXTRA+ filters that effectively reduce heavy metals such as lead and copper, chlorine and lime scale. BRITA Maxtra + Filters - the unique MAXTRA filtration technology reduces limescale and substances that impair taste, such as chlorine. Even metals such as lead or copper that sometimes occur in domestic plumbing are filtered out. For soft water, aromatic coffee and tea. It's also good for your domestic appliances, as they are effectively protected against the build-up of limescale for soft, great tasting water.