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  • 0.2-micron filter physically removes 99.9999% of all bacteria, such as salmonella, cholera and E.coli; removes 99.9% of all protozoa, such as giardia and cryptosporidium
  • Hollow-fiber filter membrane offers a high flow rate; sip on the straw and it filters the water while it's on the way to your mouth
  • Get down close to the stream or lake and use the LifeStraw to drink straight from the source, or fill your water bottle and insert the filter to start sipping
  • Effectively filters up to 264 gal. (1,000 liters)
  • LifeStraw Steel has an activated carbon capsule that reduces chemicals such as chlorine while reducing organic compounds (including pesticides), odors and bad tastes
  • Replaceable carbon capsule has a lifetime of 100 liters (26 gal.)
  • No after taste because no iodine or chlorine are used
  • Weighs only 4.4 oz., making it a very light addition to your backpacking gear or emergency kit
  • Contains no chemicals and is BPA-free; uses no batteries and has no moving parts
  • Easy to clean; can be stored and used periodically—just keep uncapped so it can dry thoroughly
  • Very durable stainless steel construction
  • No shelf life—LifeStraw Steel can be stored indefinitely


View all LifeStraw Straw Water Filters

REI membership


Best Use Backpacking
Filter Type Straw
Filter Medium Hollow-fiber membrane
Removes/Destroys Protozoa and Bacteria
Pump Force Not applicable
Pump Strokes Per Liter Not applicable
Output Not applicable
Housing Material Stainless steel
BPA Free Yes
Field Cleanable Yes
Dimensions 9 x 1 x 1 inches
Weight 4.4 ounces
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I am going to a foreign country with questionable tap water... I want to make sure I am drinking safe water, which of the life straw products be the best for that? The steel straw, the original straw, or the bottle?

Asked by: Mlowe
Either the straw version or bottle filter will offer similar filter performance for travel. However, we suggest that you consider adding a chemical treatment to kill viruses that can be prevalent in foreign countries. You can view our selection of chemical water treatments with the following link:
Answered by: REIservice
Date published: 2017-03-07

In a pinch can the Lifestraw Steel be safely used without the carbon cartridge?

Asked by: Kingteddybear
We do not recommend using the Steel Water Filter without the carbon filter.
Answered by: REIservice
Date published: 2016-10-08

Just to be sure...this is a reusable Life Straw, correct? I can replace the filter?

Asked by: kimakaze
The Steel Water Filter is reusable and replacement filters are available for purchase from LifeStraw.
Answered by: REIservice
Date published: 2016-12-12

Do you have to replace the whole straw after a while or can you just replace a filter for the straw? Thanks

Asked by: Micky
The carbon element can be replaced. They should be replaced every 3 months.
Answered by: REIservice
Date published: 2017-06-12
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