Sawyer filters are selling like hotcakes via our 10% discount deal…..if you aren’t sure if this is the filter for you, have a look at my review then click through my link to the Sawyer site. Your discount will be added at check-out! Simple. Seriously folks, these filters are ideal for all travel to developing parts of the world (and some that call themselves developed). They are simple robust and guaranteed for a million gallons! I used mine in the Costa Rica Jungles last summer and am about to take it to Morocco and then Vietnam and Cambodia. I have several other filters but this is the only one I take now.