What’s the best backpacking water filter? That’s a question many of us ask when looking to venture into the backcountry for multiple days. There’s no clear-cut answer to that question as the type of filter you might need differs depending on your situation. To help you decide, we tested the performance of a bunch of them and bring you the results so you can see what fits your needs the best. Each type of filter has specific situations where it will excel as well as situations its not as well suited for.