Multifunctional Survival Tool: An ideal tool for multiple purposes such as backpacking gear, hiking gear, travel accessories, camping & survival equipment and emergency preparedness items. Even the hiking water filter is also suitable as a gift for hikers. Versatile Filtering Modes: Direct use as a personal water filter; also ideal for connecting with soft water pouch or standard disposable water bottles to squeeze get pure water; even add an extension silicone pipe (Tubing NOT Included) on emergency water filter for more distance to drink; plus, as a replacement gravity filter to provide enough fresh water for family & group. 4-Stage Filtration: Our backpacking water filter is made up of 0.1-micron hollow fiber ultrafiltration membrane, coconut shell GAC filter, and double PP fiber filter. Reducing 99.99999% of escherichia coli, test by SGS-CSTC Standards Technical Services Co., Ltd.Ningbo Branch (Test Report NBF21-004693-01, Date: 02 Jun 2021). What's more, it can maintain the optimal flow rate (500ml/min) while the filter pore size is smaller. Long lifespan to provide at least 20,000 liters clean water. Superior Backwash Solution: Detachable mouthpiece connects with the common bottle for backwashing, no need for an extra syringe, make cleaning easier. Camping water filter does not expire like water tablets and does not require batteries, very easy to use. Innovative Detachable Design: Our WS02 water filter straw now is the only detachable straw on the market, both ends can be disassembled. That means it just needs to replace the filter element anytime and anywhere, no need to replace the straw tube shell frequently, which is truly reusable.

Item Weight: 3 Ounces. Power Source: No Need. Purification Method: Hollow Fiber Membrane. Package Information: Bottle,Syringe,Tube. Included Components: Versatile Water Filter. Capacity: 20000 Liters. Material: Plastic. Product Dimensions: 1.57"L x 8.66"W x 1.57"H. Color: Blue. Brand: Membrane Solutions. Date First Available: November 4, 2020. Best Sellers Rank: #10,405 in Sports & Outdoors. Customer Reviews: 4.6 out of 5 stars 857 ratings 4.6 out of 5 stars. : B08MQMC8PL. Style: ?4 Pack. Part Number: ?Versatile Water Filter Straw. Manufacturer: ?Membrane Solutions. Number of Items: ?4. Brand Name: ?Membrane Solutions. Item Dimensions LxWxH: ?1.57 x 1.57 x 8.66 inches. Package Weight: ?0.56 Kilograms. Item Package Dimensions L x W x H: ?9.25 x 8.31 x 1.97 inches. Maximum Flow Rate: ?500 Milliliters Per Minute. Model Name: ?WS02. Item Weight: ?3 Ounces. Power Source: ?No Need. Purification Method: ?Hollow Fiber Membrane. Package Information: ?Bottle,Syringe,Tube. Included Components: ?Versatile Water Filter. Capacity: ?20000 Liters. Material: ?Plastic. Product Dimensions: ?1.57"L x 8.66"W x 1.57"H. Color: ?Blue. Brand: ?Membrane Solutions.