Vince: China origin is an error on Backcountry.com's web site. if you open the outer package, the foil that covers that tablets is marked "made in USA." That is not on the outer package though. Only the Sodium Chlorite in the tablets-6.4% ------is from outside USA-----it is from Spain. Also shelf life is 5 years and expiration date is on bottom of package.

Unfortunately China has presented itself with this lack of trust image so I'd suggest using the "SteriPen." Here's more information: http://www.backcountry.com/outdoorgear/Hydro-Photon-SteriPEN-Classic-Handheld-Water-Purifier/HYD0001M.html http://www.backcountry.com/outdoorgear/Hydro-Photon-SteriPEN-Adventurer-Handheld-Ultraviolet-Water-Purifier/HYD0002M.html A healthy body, peace of mind, & trust is what's it's all about!