*This replacement filter is for use with older filter bottles that have the flexible tubing. The new filter bottles have now been replaced with ProSip filter straws.
The AV Ultra Lite Filtration Sport Bottle Filter Replacement is like nothing else on the market - Our sustainable plant-based filter attaches easily to the filter bottle straw top, so every sip you take is cleaned on its way to your mouth. It has been tested to remove 99.9% of Giardia and Cryptosporidium, and its activated coconut shell carbon reduces toxic chemicals, heavy metals, microscopic pathogens, chlorine, sediment and dirt - so it's safe to use everywhere from the back country to the office. Our MiraGuard antimicrobial technology even keeps the filter clean and free of mold, so you can be sure that whether you're using tap water or river water, you're drinking the freshest water around. The AV Ultra Lite Replacement Filter is made from the highest quality, premium materials.