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These are five personal straw filters that clean questionable water as you drink through them. Each uses a 0.1-micron hollow fiber membrane, weighs about 2 oz and runs 8 inches long, so it fits in a pack pocket or emergency kit. The claimed capacity is very high for a straw filter, and there is no expiry date, which suits kits stored for years. Against pump filters and gravity systems they are simpler and lighter, but they deliver less water per minute and cannot fill a bottle or a group.
In stock
In stockSold by Myriadtraders's booth
In stockSold by erikki33
In stockSold by Shop app
Out of stockSold by Nelsky, LLC
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Lowest price we've seen: $79.98 on Nov 10 at Bonanza. Tracked across 5 stores since Nov 10.
Buyers rate it highly and mostly praise the light weight, the simple no-power design and the value of getting several filters at once. Complaints center on slow flow and on the straw format being awkward for filling containers.