【Connect with Filter straw】 Compatible with LifeStraw, Membrane, and other common brands Filter Straw Filtration System. Make your filter straw into an outdoor water purifier. 【Ultra Safe Material】: The gravity-fed water bag is made of food-grade, BPA-free, ultra-safe, and ultra-durable material to ensure safe and water all the time What's in box: 3L water bagx1, Adjustable Tree Strap, Detachable Tube, 28mm adapter Only the gravity fed water bag, NO filter straws included. Buy your favorite filter straws separately. 【Connect with Filter straw】 Compatible with LifeStraw, Membrane, and other common brands Filter Straw Filtration System. Make your filter straw into an outdoor water purifier.
【Ultra Safe Material】: The gravity-fed water bag is made of food-grade, BPA-free, ultra-safe, and ultra-durable material to ensure safe and water all the time
【Large Capacity】: With 1.5 gallons of large capacity, the gravity fed bag can meet a family's or a group's water needs during your outdoor activities.
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What's in box: 6L water bagx1, Adjustable Tree Strap, Detachable Tube