•Capable of filtering out E. coli and Staphylococcus aureus with a filtration rate of 99.99%, making it suitable for filtering outdoor surface water of categories 1-3, providing instant filtered drinking water •Equipped with a unique dual interface: the bottom connection directly fits cola bottle openings, while removing the adapter reveals a interface compatible with Evian bottle openings, ensuring high compatibility with various market water bottles •Compact and portable, this mini filter is easy to grip with one hand, facilitating convenient carrying for activities such as camping, hiking, exploration, and backpacking, reducing the burden of water supply •Offers versatile usage options by being compatible with water bags, bottles (dual-purpose), and water pipes, providing diverse and adaptable water consumption methods Specifications: •Filtering Precision: 0.01 Micrometers •Material: ABS •Filter Configuration: Hollow Fiber Ultrafiltration Membrane/Activated Carbon Fiber/PP Filter Cotton/Stainless Steel Filter Mesh •Product Interfaces: Compatible with Coca-Cola Bottle Openings, Yi-Bao Bottle Openings (Dual-purpose) •Size: 35×120mm Package included: •1 x Water Filter Straw •1 x Water Bag •1 x Backwashing Device •1 x Water Intake Pipe •1 x Storage Bag •2 x Replacement PP Filter Cotton •other items not included