While PUR has encountered some issues, their products are still available. I spoke to PUR just last week. The outdoor and marine lines have purchased by Katadyn (as has Extream) and I would expect their new Web site to be up and running with up to date info in the next month or so. Meanwhile, I still like my Scout. Another option is the MSR line which seems good and reliable oor General Ecology if you are comfortable with their throw-away filter concept (which I don't prefer).