1. [ Rapid filtration ] Our water bottle filter adopts high quality coconut shell carbon block filter for water bottle filter element replacement, effective odor, sand, rust, chlorine, sediment, etc., to provide excellent taste of drinking water at any time. 2. [Filter Compatible Models ]Filter not suitable for water bottles without straws or soft squeeze sports water bottles, compatible with 26 or 36 oz Brita plastic filter water bottles and 20 or 32 oz stainless steel water bottles. 3. [ Taste Boost ] This water bottle filter uses premium filtration materials and an upgraded innovative construction with a sealed bottom for a higher density.This water bottle with filter element replacement filter area is larger, better filtering effect, so as to ensure better water taste. 4. [ Easy to use ] This water filter is easy to install. The first step is to clean it with water for 15S.Step 2: Insert the filter into the straw;Step 3: Connect the straw to the lid. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store