When clear water is not available, use the Water Bottle Pre-Filter by SteriPEN. The Pre-Filter filters out particulates and debris. Fits on Nalgene® and wide-mouth water bottles.
|Batteries Included In Purchase?||No|
|UV Lamp Life||No|
|Minimum Bottle Diameter||20mm (0.8 inches)|
|User Guides||Download Pre-Filter User Guide|