Read reviews for the First Need Deluxe Purifi by General Ecology as submitted by your fellow paddlers. All of the reviews are created and written by paddlers like you, so be sure to submit your own review and be part of the community!
I've lost directions on cleaning my FN filter, so not sure if you just back flush or have to buy a new filter. Waiting to hear back from FN customer service. Nice that a bottle screws on to the unit, so you are not fumbling around wasting filtered water.
I bought the FN because I found excellent reviews on this filter (flow rate) and it took out all the small stuff one needs to be concerned about.
You won't be disappointed. Don't waste any more time reading reviews.... go buy it.
I highly recommend.