Water Filter Straw, Camping Water Filter for Portable Water Purifying Device with Carabiner Compass Whistle and Mirror…

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High-quality materials: The camping water purifier is made of food-grade ABS plastic, which is ergonomic and comfortable to use; the water filter is an essential tool for outdoor survival.
Practical design: Its a filter water purifier with a cover with whistle design, which is convenient for emergency help. In addition, there is a compass at the bottom of the filter tube, which can better help you find the direction during outdoor activities.