[Improved taste] Reduce chlorine (taste and odor) and more found in tap water with every sip;Get great-tasting water anywhere with the filtered for water bottle filter replacements [High-efficient filtration] The premium coconut shell carbon block filter for water bottle filter replacement can effectively reduce chlorine, taste and odor, sand, rust, sediments, and more, thereby providing great-tasting drinking water at any time. [Extended lifespan]Replace your water bottle filter after 40 gallons or approximately every 2 months and enjoy great-tasting, filtered water in minutes;One water filter can replace about 450 plastic bottles of 330 ml water, which helps reduce the number of discarded plastic bottles while saving your cost. The lifespan of this water bottle filter replacement based on water quality. [Convenient Carry]It's the convenient way to stay hydrated or ; -free water filter is compatible with all filtering water bottles; 16.9 oz water bottle [Easy installation] This filter compatible with water bottle is easy to install in three steps: Step 1: Flush it under tap water for about 20S;: Insert the filter in the straw;Step 3: Connect the straw with a lid. Material: activated carbon Color as shown Please note: There is a slight color difference or discrepancy in kind, please don't mind, thank you! Package Contents: 20 x Water Bottle Filter 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.