Features include: 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. Replacement filters available. 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. Patented BITE-ME? Valve provides a comfortable, no-leak mouthpiece. New features include higher flow rate, larger bottle capacity, new capsule style filter treats more water, "Finger-Grip" carry loop, and ultra-strong Tritan dust cap. Made in the USA.