Membrane Solutions Water Filter Straw S2, NSF/ANSI 42&372&401 Certified, 4-Stage 0.1 μm Portable Water Purifier with Replaceable Filter, 5,000L Capacity for Camping, Hiking, Survival and Emergency- 5P

Good quality unit. Best Multilpile Stage Purification portable filter I have found!!!

Should last long enough to wait out all the zombies 🧟 💧 Last forever on shelf till you start using it. Hopefully never have to use it !

Quality filter at a reasonable cost.

Portable and efficient

I bought this for my emergency hurricane kit. Compact, takes up less space.

Love these with the water bag! Super simple and multifunctional. Price is great!

put these in my go bag, not too big.

I was out in the forest, lost, cold, and scared, when I remembered watching one of these great advertisements for these. I quicklyy grabbed my phone and had amazon use one of their new drones to deliver it to my exact location. because of the amazing technology used within this tech, I was able to survive off of my own urine and a local muddy puddle that I became good friends with out in the forest. by the second or third delivery from amazon, it occurred to me that I should just return a package with me in it so I could make it back to safety. besides, I was getting a little sick of the urine infused water, and also there was a bear. he looked a little hungry to be completely honest. I may also have been really high when this all went down, but great product nonetheless!

Excelente material de filtragem. Recomendo.

Ich habe den Filter ein paar mal mit auf wanderausflügen gehabt um aus Bächen zu trinken.🤣Nun ich lebe noch also scheint es zu funktionieren

Works great 😊 I would recommend this product!

These work very well. Use it with my base camp 4L gravity set and the everything connects no problem. Filters quickly. When it slows, a quick back flush and you're back to normal rate. Best part, no beaver fever, diarrhea, or dysentery.

Straw is working perfectly. It can be fixed on to Mai Dubai’s water bottle. Remember to remove the cap locking ring on bottle neck before fixing the filter straw. Water flow is not too much but it’s more than enough to survive. Very useful gadget to have camping, trekking and travelling.