Water Bottle Filter is made of food-grade, lead-free materials. Uses 100% 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, as well as soft-sided sport water bottles and stainless steel water bottles. (If you are unsure whether your water bottle is compatible, check the replacement filter model number at the bottom of the bottle.) Enjoy fresh water by replacing the filter every 2 months or after 40 gallons, whichever comes first, depending on water conditions. This 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 differ between hard-sided bottles and sport 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. Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.