The Sawyer Water Treatment Bottle is the fastest, easiest way to get clean drinking water in the back country. The Sawyer 4-Way Water Filter of the Sawyer Water Treatment Bottle is an ultra-light solution to get clean water instantly. Simply unscrew the lid, fill up the bottle in a lake or a stream, screw the lid back on, and drink. Check out the video above for more information on how to use the Sawyer Water Treatment Bottle.