WaterBean Water Bottle Purifying Filter Stick and Pack of Replacement Filters (green) One WaterBean, available in 3 colors and a pack of enough replacement filters for 2 WaterBean refreshes. Stylish and portable WaterBean filter turns ordinary tap water into crisp, delicious water. Help your wallet and the environment. One WaterBean can save you from purchasing 120 bottles of water that later end up in landfills. This WaterBean and Filter set will clean 360 bottles of water. The compostable coconut carbon filter removes nasty tastes and odors and also adds essential magnesium minerals to your water. Fits in about any bottle. Contracts and expands to fit plastic bottles, sports bottles or tumblers. Easy to insert and remove.