SteriPEN Pre Filter For Water Bottles White & Blue
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.
4 micron durable nylon screen
Cartridge for compact and convenient storage
Dual water seals for preventing drinking surface contamination
67 L x 47 H mm
12 Month Warranty