Stay hydrated safely with the Waterdrop Gravity Water Filter Straw, your essential camping water filtration system. Designed for hiking, travel, and emergency survival, this lightweight purifier removes 99.9999% of bacteria, microplastics, and sediment from natural water sources. Simply immerse the straw in lakes, streams, or rivers for instant clean drinking water—no pumps or electricity needed! Key Features ✅ Advanced Filtration – Removes 99.9999% of bacteria & microplastics ✅ Gravity-Based Design – No pumping required (works by suction or gravity feed) ✅ Ultra-Portable – Compact & lightweight for backpacks and survival kits ✅ Long Lifespan – Filters up to 1,000 liters (264 gallons) of water ✅ Versatile Use – I for camping, hiking, travel, and emergency prep 📋 Product Specifications Attribute Details Brand Waterdrop Filtration Capacity 1,000 liters (264 gallons) Filter Technology 0.1-micron hollow fiber membrane Removes Bacteria, microplastics, sediment Chemical Safety No high-concern chemicals Origin Mainland China Weight Ultra-lightweight (exact weight in specs) 🏕️ I for: Camping & hiking – Purify water from rivers/lakes instantly Travel & backpacking – Safe drinking water anywhere Emergency preparedness – Essential for survival kits Outdoor adventures – Lightweight and easy to carry 🚀 Why Choose This Water Filter? ✔ No Electricity/Pumps Needed – Works by suction or gravity ✔ Faster Flow Rate – Drink directly without long waits ✔ Reusable & Eco-Friendly – Reduces plastic bottle waste ✔ Tested & Reliable – Meets international filtration standards Model: WD-FSBULCapacity:The Waterdrop gravity water filter straw system can provide 1,400 gallons/one straw of safe drinking water.The maximum capacity can be reached 100,000 gallons by backwashing to purifier the straw.The Waterdrop gravity water bag can hold up to 1.5 Gallons of water at a time.5-Stage Filtration: Made from selected filtration materials, the 0.1 um fiber membrane of the gravity water filter straw can reduce most harmful substances in water to ensure the safety of every drop of outdoor drinking water.Applicable Scenes: Camping, travel, hiking, boating, fishing, rock climbing and biking.