Base Camp Water Purifier Non-chemical drinking water purifier that cleanses your water instantly, reliably and effectively using our proprietary “Structured Matrix™” technology: independently certified to EPA Guide Standard Protocol for Microbiological Purifiers against bacteria, cysts and viruses. Enjoy pure refreshing water when and where you need it, without chemicals, hold time or electricity. Water-Resistant Carrying Case Compact, stainless steel housing Long, non-kink tubing Double-action field-serviceable pump Unique, durable prefilter Designed for rugged use­— Base Camp water purifier...