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Free shipping to your door.

Breaks in 30 days? Send one photo and we send a new one. No return needed. Not happy for any other reason? Send it back within 30 days for your money back.



Drink from the stream, not your worry.

This water filter straw lets you drink fresh water from streams, lakes, and rain. It is for hikers, campers, and anyone who keeps an emergency kit.

What you get: 1 water filter straw and a spare pre-filter screen. The kit choice adds a 3,000 ml dirty-water bag, a 3,000 ml clean-water bottle, a hose, a hose clip, a tree rope, and a carry bag.

Our 30-day promise: Use it on a real trip. Not happy within 30 days of delivery? Send it back and get your money back. Used is fine. You pay return shipping unless it came broken.

Shipping: Free US shipping. Orders pack in 1 to 2 business days, then arrive in about 3 to 7 business days.

Water filter straw taken apart: carbon filter, main filter and pre-filter screen

✓ 3 steps of filtering. A screen, a 0.1 micron filter, and a carbon filter work in order. You feel calm taking a sip.

✓ Fits regular bottles. Both ends screw onto 28 mm bottle threads. You fill and filter fast when you are thirsty.

✓ Better taste. The carbon filter cuts chlorine taste. You feel glad when the water tastes clean.

The last sip is gone

Your bottle is empty. The trail still climbs. Your mouth feels like dust.

Then you hear water over rocks. You kneel down and drink through the straw.

The water is cold. You smile. The worry is gone.

Close views of the 28 mm threads on both ends of the filter and a bottle neck

✓ Backwash to clear it. Squeeze clean water back through. A slow flow speeds up again and you feel relief.

✓ Hang it from a tree. With the kit, let water drip down on its own. You fill bottles while you rest.

✓ Light to carry. It weighs about 3 ounces. You barely notice it in your pack and you feel free.

Questions people ask

Does it filter salt water?
No. It is for fresh water only, like streams, lakes, and rain.

How do I know when to change a filter?
If water stays slow after you backwash, change the screen. If a bad taste stays, change the carbon filter.

How much water can it filter?
The main filter is rated for about 1,000 liters. It depends on how clean the water is.

Specifications

  • Filter pore size: 0.1 micron
  • Main filter: About 1,000 L (264 gal)
  • Size: 1.8 x 6.8 in (45 x 172 mm)
  • Weight: 3.2 oz (90 g)
  • Flow: 200 to 600 ml per minute
  • Bottle threads: 28 mm
  • Water: Fresh water only
  • 5 stars: 1 (33%)
  • 4 stars: 2 (67%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
J
Janeen Rutherford

These charcoal units fit the filter very well. however i believe in the past these were made from activated charcoal block, and now they are essentially sewn sacks that are filled with charcoal, which does not have the same filtering abilities as a block at all. still worth having, but not the same. shrinkflation at work, i think.

G
Gloria Upton

Fantastic filter unit, and i love that each of the three stages can be replaced independently - pre-filter, micro filter, and activated charcoal. also fantastic that it can be screwed onto most normal pet bottles, very useful. it is not perfect though: it would be better if the activated charcoal would be a solid block rather than a sack filled with loose charcoal, blocks filter much, much better than loose charcoal. i believe in the past these were blocks - shrinkflation? also, seriously, please finally tell customers the size of these collapsible water bottles. customers need to know how much water they can hold, before buying them. i talked to their customer service, and even they weren't able to answer this very simple question. still, pretty convincing filter setup. thank you!

L
Laura Fritsch

The product exists, the description of the main features is convenient and very useful.