Gravity Water Filter Bag Straw Purifier Filtration Drinking Camping Hiking Gear

With a flow rate of 27 liters per hour, it won’t slow you down when you’re trying to make miles. 0.1-micron Ultrafiltration:Our pore size is 0.1 micron. We all know that the smaller pore size, the higher the filtering accuracy, but the lower flow rate.

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