User Review: MSR SweetWater Microfilter
This product was great when it was under the Sweet Water brand. Since MSR took over I have been experiencing problems with their filter elements clogging early (one clogged in the first 5 gallons!). Other people in my hiking group have had problems, some have had no problems. I switched to Katadyn after two Sierra trips were mired by filter problems. We'll see if Katadyn works any better.