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Membrane Solutions Straw Water Filter S1, NSF/ANSI 42&372&401 certificated, Survival Filtration Portable Gear, Emergency Preparedness, Supply for Drinking Hiking Camping Team Family Outing

  • Based on 12,398 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Oct 1
Order within 23 hours and 18 minutes
Available payment plans shown during checkout

Style: 6 Pack


Color: Blue


Features

  • Survival Gear for Outdoor Water Needs - Certified by NSF & SGS (Test Report NBF21-004693-01) and rigorously tested to meet NSF/ANSI 42, 372, 401 standards, this portable water filtration system ensures, drinking water in seconds. The NSF certifications validate its ability to remove odor and particles, while maintaining lead-free material. Lightweight and compact, its designed for extreme reliability during hiking, camping, global travel, or emergenciesproven by science, trusted by adventurers.
  • Triple NSF Certified for Complete Reliability & Superior Taste - Breathe easy with every sip. Our straw is independently certified to NSF/42 (for chlorine & taste improvement), NSF/372 (lead-free materials), and NSF/401 (reducing microplastics and particulate). This triple verification guarantees you get the purest, best-tasting water while keeping metals, microplastics and particulate at bay.
  • Portable & Long Life-Span - This straw filtration at only 7.1'' long and 1" in diameter fits any 28mm threaded bottle, cup, or glass. It weighs just 2 ounces and fits in the palm of your hand, pocket, gym bag, backpack, survival pack or purse. Both ends of the Upgrade water filter straw are removable for extend Longer Lifespan ensuring it provides up to 1,320 gallons (5,000 liters) of drinking water. Don't miss this opportunity to drink water conveniently wherever you go.
  • 5-Stage Filtration - Our Upgrade 5-Stage Filtration System includes a coarse filter screen, double layer pp cotton fiber, coconut shell activated carbon and hollow fiber ultrafiltration membranes. Ensuring the water in the worst environments.(IT DOES NOT LOWER TDS VALUE, ensuring water's essential mineral balance remains untouched.)
  • Smaller Pore Size - We all know that the smaller the pore size, the higher the filtering accuracy, our pore size is 0.1microns. Compared to the 0.2-micron water purifier straw on the market, Membrane Solutions 0.1 microns pore size water purifier straw maintains the optimum flow rate (16.9 fl oz/min / 500ml/min) and a high filtration accuracy at the same time.
  • High-Quality Materials & Versatile Filtering Modes - Made of durable food-grade plastics, manufactured with BPA-Free ABS, ensuring quality drinking water. Compared to the big filter straw on the market, Membrane Solutions water filters have a smaller frame, more convenient to use and more filtered modes, ideal for connecting with a soft water pouch or disposable water bottle, even as a replacement gravity filter to get water for family & group.

Brand: Membrane Solutions


Special Feature: Portable


Product Dimensions: 5"L x 3.5"W x 7.4"H


Package Information: Bag,Bottle


Installation Type: Personal Container


Power Source: Non Electric


Item Weight: 2 Ounces


Model Name: gear


Maximum Flow Rate: 500 Milliliters Per Minute


Supported Water TDS Level Maximum (PPM): 1000


Brand: ‎Membrane Solutions


Special Feature: ‎Portable


Product Dimensions: ‎5"L x 3.5"W x 7.4"H


Package Information: ‎Bag,Bottle


Installation Type: ‎Personal Container


Power Source: ‎Non Electric


Item Weight: ‎2 Ounces


Model Name: ‎gear


Maximum Flow Rate: ‎500 Milliliters Per Minute


Supported Water TDS Level Maximum (PPM): ‎1000


UPC: ‎850071881752


Global Trade Identification Number: ‎52


Manufacturer: ‎Membrane Solutions


Item Package Dimensions L x W x H: ‎7.4 x 5.08 x 3.5 inches


Package Weight: ‎0.5 Kilograms


Item Dimensions LxWxH: ‎1.18 x 1.18 x 6.69 inches


Brand Name: ‎Membrane Solutions


Color: ‎Blue


Number of Items: ‎6


Part Number: ‎water filter straw


Style: ‎6 Pack


Date First Available: June 24, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Oct 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Amazing water filter straws – great for hiking and emergency kits
Style: 4 Pack Color: Blue
I originally bought these water filter straws for my emergency kit, but I had the chance to try them during a recent hiking trip and I loved them. We tested them with lake water and it worked perfectly—the water came out clean with no weird taste. I was really impressed with how well they work and how easy they are to carry. Now I feel even more confident keeping them as a key part of my emergency supplies. ... show more
Reviewed in the United States on July 14, 2025 by Sylvia Chavez

  • Great idea
Style: 1 Pack Color: Blue
I have read about these straws and hope to never have to use it. I bought it for an emergency situation.
Reviewed in the United States on August 14, 2025 by Karen G.

  • Good price and well built
Style: 2 Pack Color: Blue
I bought these because of a recommendation. I have not used them as of yet. They appear to be made well and come with a good rating from other customers. They are portable with a fair price point and can last over extended use.
Reviewed in the United States on September 4, 2025 by Scott R. Gerber

  • A necessity for hiking, camping, emergencies and a “Go-Bag”.
Style: 4 Pack Color: Camo
Have not actually used. Ratings indicate a good product. We have them on-hand in case of need.
Reviewed in the United States on September 11, 2025 by Amazon Customer

  • Everyone should have these just in case
Style: 4 Pack Color: Blue
Just what I wanted at a good price, fast delivery.
Reviewed in the United States on September 4, 2025 by Jeremy S. Kidwell

  • Quality
Style: 4 Pack Color: Blue
These are one of the best quality emergency water filters on the market. They work great. I'm giving some as gifts for Christmas to some of my hikers friends & some for auto emergency kits.
Reviewed in the United States on September 10, 2025 by diana ross

  • Good product
Style: 4 Pack Color: Blue
Easy to use. Small in size but good water clarity
Reviewed in the United States on July 19, 2025 by Soft

  • Great for the price!
Style: 6 Pack Color: Blue
We ordered these to go into our "Go Bag" as my husband says. Have not used them, but was heavily recommended and happy to finally have!
Reviewed in the United States on September 16, 2025 by Tailore

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