Product review (5 stars): Katadyn is TOPS!!
I bought the Katadyn Pocket water purifier system many years ago and really had no reason to buy this replacement filter other than to have a replacement on hand if needed. I have filtered and drunk lake and river water several times. This system does not remove all the bad taste, but lake water does NOT taste like fish after going through it. It is very much drinkable in a non survival situation. In a survival situation this same water taste like a wonderful cool glass of bottled water...just plain refreshing! Having the ability to refill my canteens and water bladders, with great confidence that no one will become ill from it, is the only reason you need to buy this water purifier. However, not having to plan your outings around the ligistical aspects of hyration takes a load off your mind as well as your back. There are many ways to purify water, but none faster than this and with the use and approval of all US Special Forces and the SAS, as well as most of the worlds militarys and rescue organizations, if there was ever a flaw in the "Katadyn Pocket" design, it's been correected long ago during it's 50+ year history. At a possible 13,000 gallon filter life, I will be handing this down to one of my sons, and he can possible wear out the original filter and start on the replacement.