The Aquamira? CR-100 Capsule Filter is the replacement filter for the Aquamira H2O Capsule Water Filter Bottle. Once you've hit 100 gallons, or 640 refills in that sport bottle remove the old Capsule Filter, and replace it with a new one. By design, it attaches directly to the Bite Me? Valve, so you won't have to purchase any additional parts; just attach it and go. Once again, you'll be drinking safe, delicious water, anywhere. Fits : H2O Capsule Water Bottle - Campmor Item #28819.Aquamira CR Filtration Technology? is tested and certified to reduce chlorine, bad tastes and odors and remove >99.9%* of Giardia and Cryptosporidium Activated coconut shell carbon water bottle filter (CR-100 Capsule Filter) treats 100 gallons of water, or 640 refills, while reducing organic contaminants and waterborne chemicals. It's easy to install, and quick to remove. Fits : H2O Capsule Water Bottle - Campmor Item #28819 Miraguard? Antimicrobial Technology suppresses the growth of bacteria, algae, fungus, mold and mildew within the filter media. Miraguard does not protect users against food borne or disease causing bacteria, viruses, germs or other disease causing organisms Aquamira water filter bottle Replacement filter Improves taste and eliminates odors New features include higher flow rate, larger bottle capacity, new capsule style filter treats more water BPA Free Made in the USA PLEASE NOTE: If you live in the state of Iowa, we are unable to sell you any water purification system due to Iowa Department of Public Health Restrictions. We apologize for any inconvenience.