Filtration System for Reusable Bottles Compatible for BB06Water Bottle Filter is made of food-grade, lead-free materials. Uses coconut shell carbon block from Sri Lanka for maximum filtration and cleaner water. This Water Bottle Filter is compatible with BB06, 060258363241, and most hard-sided water bottles, including sport soft-sided water bottles and stainless steel water bottles. (If you are not sure whether your water bottle is compatible, check the filter model number at the bottom of the bottle.) Enjoy better-tasting water by replacing your filter every 2 months or after 40 gallons, whichever comes first, depending on water s. Each Water Bottle Filter can replace up to 300 standard 16.9-ounce plastic water bottles, helping reduce plastic waste and lower costs. The filter is easy to install without tools. Note that installation methods may vary between hard-sided bottles and sports bottles. For BB06 Material: Plastic Color: Black + White Package Contents: 6 x Water Bottle Filters Only the above package content is included; other products are not included. Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.