ken Baruth wrote a review of Katadyn Hiker Water Microfilter on August 15, 2011
I have used this filter on several long hiking trips. I was pumping very cold water and attempted to remove the inlet tube (something I had done many many times) and the nipple broke off. I did not do anything different or use more force than I normally do. Good thing my other friends had filters. This looks like a design issue.