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Amazon.com : 2 Pack Water Filter Straw - Water Purifying Device - Portable Personal Water Filtration Survival - for Emergency Kits Outdoor Activities and Hiking - Water Filter Camping Travel Survival Backpacking : Sports & Outdoors
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Amazon.com : Etekcity Water Filter Straw Camping Water Purification Portable Water Filter Survival Kit for Camping, Hiking, Hurricanes : Sports & Outdoors
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Katadyn Hiker Pro Transparent Water Filter, Lightweight, Compact Design for Personal or Small Group Camping, Backpacking or Emergency Preparedness, one Size (8019857) : Katadyn: Amazon.ca: Sports & Outdoors
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