Drink healthier, great-tasting water anytime, anywhere with these Brita Water Bottle Replacement Filters. This BPA-free water bottle filter removes class VI particulates and chlorine taste and odor in drinking water while leaving behind certain healthy minerals and electrolytes. Made using a proprietary blend of activated carbon and binders, this water bottle filter lets you enjoy great-tasting drinking water no matter where you fill your Brita water filter bottle. You can replace up to 1,800 standard 16.9-oz. plastic water bottles a year with this Brita filter, so you can stay hydrated, save money and reduce plastic waste. Replacing the filter on your Brita filtered water bottle is easy. Simply rinse the replacement filter for 15 seconds, insert the filter, and align and lock the lid and straw. One filter lasts up to two months or 40 gallons. Brita water bottle filters fit in all Brita bottles. Get great taste, less waste and more savings from Brita. USAGE DIRECTIONS: For hard sided bottles, rinse filter for 15 seconds (first time filter use only). Drop in filter and press down firmly until filter is flush with straw. Align lid and straw in unlocked position, and rotate straw to lock. Fill bottle with water, screw on lid, then sip and enjoy. For sport bottles, unscrew mouthpiece and push filter into housing. Replace mouthpiece. Unscrew cap and fill bottle with cold tap water. Tighten cap firmly. Squeeze one full bottle of water through the filter before use. Refill bottle and enjoy.