NRP 5-pieces of Activated Charcoal Disc replacement for your Water Bottles & other similar . Pure taste: with natural activated carbon from coconut shells, the FilterDisc reduces chlorine, micro-particles and taste-disturbing substances in tap water - valuable minerals are preserved The FilterDisc filters tap water without time delay directly when drinking - turns water into a tasty refreshment in real time. Dimensions: 55mm diameter x 6mm thickness 5 x NRP water filter disc for fill & go drinking bottles and &go carafes - one is sufficient replacement for 4 weeks or 60L filtered water. With the NRP FilterDisc uses activated carbon from natural coconut shells to improve the smell and taste of water. Reduces disposable plastic NRP filter causes less plastic waste than bottled water made from single-use plastic. Protect our environment. How the filter inside works: The water runs through compressed natural activated carbon from coconut shells, which is responsible for filtering tap water. Micro-particles (≥ 30 μm), chlorine and other taste and odour disturbing substances are reduced by the activated carbon. Valuable minerals such as calcium (Ca) and magnesium (Mg) are not filtered out, but remain in the water. Color: As Shown Material: activated carbon Package Contents: 5 * Filter Disc Replacement Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.