> We plan on buying a Katidyn mini filter for our grandchildrens hike > for 2003.The filters are easy to clean,last 2000 gallons for the mini. O.K. I was going to remain quiet, but, I have used the Katidyn Mini filter. SLOW, Slow, slow. I normaly carry and am quite satisfied with, the Sweetwater Guardian. The output hose and bottle adapter are kept in a seperate ziplock bag to avoid contamination.