Rated 2 out of
Not the worst system out thereI have a steripen that I use on a regular basis. I bought this pre filter for those days when I'm drawing muck water that i'd like to filter for large particulates. While I have seen worse, this system is problematic. While it is easy to set up, you have to pre wet the filter to fascilitate water passing through it, and it does clog super easy. While I have seen worse, for the price you're paying, you're not really out much. When they say you pay for what you get, this is proof of that. I would recommend you buy another pre filter system or simply go with the old coffee filter/tshirt method.