I can't remember the name of mine, but it's just a regular sized water bottle with the filtering in the lid. I bought it for a trip last year with my Brother inlaw to Montana. He used them due to a run in with " Beaver Fever" once. Myself I found them a little cumbersome due to the amount of time to strain the water, a quart took about five to ten minutes in mine adn your too thirsty usually to wait that long.I myself have never run into any waterborne illnesses. I only used it for a day, got tired of waiting and just drank from the stream. I would use them defintely if it wasn't a running source of water but I always drink from a fairly fast moving source?