Check the listing for details. Aquamira Frontier Pro Ultralight Water Filter System Bladder Straw Gravity. Condition: New. Listed at 34.99 USD. Aquamira Frontier Pro Water Filter System Colors Vary unless specified - Gray or Orange Removes 99.9% of Giardia and Cryptosporidium down to 3 microns Fits Hydration Packs, Standard Water Bottles, Standard Water Bladders Filters up to 50 gallons Removes odors and improves taste Designed for easy operation Make clean drinking water anywhere Miraguard antimicrobial technology 28mm thread / tube adapter 12" draw tube Includes 3 replacement pre-filters Removes odors and improves the taste of water Ultralight and designed to fit comfortably in your hand Patented Bite-Me valve and integrated strap grip Easy connect-ability to standard hydration systems Specifications Dimensions: 7.875" x 1.125" Diameter Weight: 2.8 oz