When clear water is not available, use the Water Bottle Pre-Filter by SteriPEN. The Pre-Filter filters out particulates and debris and fits most wide-mouth water bottles.
Once water is filtered, attach the SteriPEN Classic or Journey to purify the water using UV light, ready to drink.
- Filters larger particles from river or lake water
- 4 micron screen
- Attaches to most wide mouth water bottles
- Pour water in, or submerge bottle to fill through filter
- Full instructions included