The SteriPENPre-Filter removes debris from water so the UV light can effectively destroy the microorganisms in it. The SteriPEN Pre-Filter filters fits on Nalgene and other 32 ounce wide-mouth water bottles and filters out particulates and debris. When... more
This SteriPEN prefilter fits the openings of Nalgene® and comparable wide-mouth water bottles to filter particulates and debris from water. Use the prefilter to provide clear water, which in turn can be purified using the SteriPEN? Water Purifer or... more
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