24 Pack of 3 Vapur Shake Filter Water Refreshers, 72 Filters Total, Eco Friendly Details: Activated carbon filter 24 Packs of 3 personal filters (72 total filters) Perfect for travel Biodegradable bags Rinse before first use Filtered water isn't always available, especially if you're at the gym, park, or traveling overseas. These charcoal activated filter bags are perfect for anyone who doesn't want to contribute to the plastic water bottle craze. Simply fill a reusable bottle with tap water, toss in the filter and shake for 30 seconds for clean fresh tasting water! Keep them in your pocket, purse and car to ensure you always have access to clean water without hurting the environment. Each box contains 3 individually wrapped filters, and this listing includes a total of 24 boxes, giving you a grand total of 72 reusable filters. Each filter can be used up to 50 times, providing you with long-lasting, convenient water filtration on the go.