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Membrane Solutions Personal Water Filter Straw S1

Membrane Solutions Personal Water Filter Straw S1

Regular price £39.07 GBP
Regular price £30.05 GBP Sale price £39.07 GBP
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Style
Color
Quantity
water filter straw blue CHE -A+-1 1464
water filter blue-A+4-1 1464
  • Our personal water filter straw will be indefinite if unused and stored in a protected environment, moderate temperature, low ozone, etc.

  • Our upgraded straw can not only connect disposable water bottles of 28mm threading as squeezable water filtration system but also as a replacement filter of different gravity systems. Of course, it also applies to our 6L gravity system "B08ZYMXLMH".

  • The upgrade water filter has a larger filtration capacity of 5,000 L (Can only filter 1,500 liters before), and the water flow rate is getting faster.

  • 1) When Water Filter is dry, stand it up in drinking water for 1-2 mins or rinse the water filter straw under the tap from the "mouthpiece" side, until the inside is wet; 2) After each use, backwash by water, and vertical placement to dry.

  • We suggest that you always use the best fresh water source to backwash the straw filter after each use. Note: Be sure to remember dry then storage and doesn't work for seawater.

More Choices

Upgrade Filter Straw

Gravity Water Filter 6L

WS02 Water Filter Straw

C3 Filtered Water Bottle

Squeezable Filtration Kit

U3P Gravity Water System

Customer Reviews
4.7 out of 5 stars 14,459
4.6 out of 5 stars 1,717
4.7 out of 5 stars 1,984
4.0 out of 5 stars 159
4.5 out of 5 stars 440
4.5 out of 5 stars 313
Price
$39.99 $39.99 $39.99 — $16.99 $179.99
Removes E. Coli
✔ ✔ ✔ ✔ ✔ ✔
Removes Sediment
✔ ✔ ✔ ✔ ✔ ✔
Filter Capacity
5,283 Gallons (20,000L) 1,320 Gallons (5,000L) 5,283 Gallons (20,000L) 1,057 Gallons (4,000L) 1,320 Gallons (5,000L) 3,000 Gallons (11,356L)
Filter Pore Size
0.1 microns 0.1 microns 0.1 microns 0.1 microns 0.1 microns 0.1 microns
Reduce Chlorine and Bad Taste
✔ ✔ ✔ ✔ ✔ ✔
  • Drink Anywhere, Certified by Science - This survival-grade straw filter meets strict NSF/ANSI 42, 372, 401 standards (Test Report: NBF21-004693-01). It instantly removes 99.9999% of total coliforms (including E. coli and other representative organisms). It’s designed for extreme reliability during hiking, camping, international travel, or emergency preparedness—proven 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 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. Flexible use of threaded water inlet cap to easy backflush. (IT DOES NOT LOWER TDS VALUE, ensuring water's essential mineral balance remains untouched.)
  • 0.1 Micron Pore Size & Balanced Flow Rate - This water filter straw features a 0.1 micron pore size, designed to help improve filtration precision. It delivers a flow rate of up to 16.9 fl oz/min (500 ml/min) for a balance between filtration performance and drinking speed, making it suitable for outdoor, travel, and emergency use.
  • Food-Grade Materials & Multiple Use Modes - Made from durable, BPA-free ABS plastic, this water filter straw is designed for everyday and outdoor use. Its compact size allows for easy handling and portability. The filter is compatible with soft water pouches, disposable water bottles, and gravity-fed setups, making it suitable for individual, family, or small group water filtration needs.
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