Membrane Solutions Corp via Amazon has 4-Pack Membrane Solutions Personal Water Filter Straws on sale for $15.59 when you clip the 50% Off coupon on the page and checkout with Subscribe and Save. Shipping is free w/ Prime or on $35+ orders.
Thanks to Deal Hunter TattyBear for sharing this deal.
Note: You must be logged into your account. Coupons are typically one use per account. You may manage your Subscribe & Save subscriptions at any time after your order ships. View Subscribe & Save filler items and our current Subscribe & Save Frontpage deals to unlock up to extra 15% savings when you have 5 or more items in your current monthly subscription.
About this Item:
SGS certificated, Test Report NBF21-004693-01
up to 1,320 gallons lifespan
7.1'' long and 1" in diameter
Fits any 28mm threaded bottle
5-Stage Filtration System removes up to 99.99999% of harmful substances (pollution, odor, chlorine and organic chemicals, etc.)
At the time of this posting, our research indicates that this is $1.60/each lower than the next best options with prices starting from $5.50/each. -SaltyOne
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This collaborative space allows users to contribute additional information, tips, and insights to enhance the original deal post. Feel free to share your knowledge and help fellow shoppers make informed decisions.
Membrane Solutions Corp via Amazon has 4-Pack Membrane Solutions Personal Water Filter Straws on sale for $15.59 when you clip the 50% Off coupon on the page and checkout with Subscribe and Save. Shipping is free w/ Prime or on $35+ orders.
Thanks to Deal Hunter TattyBear for sharing this deal.
Note: You must be logged into your account. Coupons are typically one use per account. You may manage your Subscribe & Save subscriptions at any time after your order ships. View Subscribe & Save filler items and our current Subscribe & Save Frontpage deals to unlock up to extra 15% savings when you have 5 or more items in your current monthly subscription.
About this Item:
SGS certificated, Test Report NBF21-004693-01
up to 1,320 gallons lifespan
7.1'' long and 1" in diameter
Fits any 28mm threaded bottle
5-Stage Filtration System removes up to 99.99999% of harmful substances (pollution, odor, chlorine and organic chemicals, etc.)
At the time of this posting, our research indicates that this is $1.60/each lower than the next best options with prices starting from $5.50/each. -SaltyOne
About this Store:
Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
Model: Membrane Solutions Portable Water Filter Straw Filtration Straw Purifier Survival Gear for Hiking, Camping, Travel, and Emergency, Blue, 4 pack
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Sale Price does not include sale prices at Amazon unless a deal was posted by a community member.
I hope to shed some light as I have worked in this industry for several companies. To those who are worried about it being an unknown brand: the filter media design and material are going to be the same in all these straw tube-style filters. They are extremely cheap to manufacture but early adopters and well known brands charge more because they market better. They should not effectively expire if they are kept out of damp or humid conditions. On that same note, best practice is to back flush with clean water after use or every 20-30 gallons during active use as the media does plug up and contaminants need to be released. Always shake them dry between use and don't store them in something air tight.
Sorry, that was long winded.
Edit: not well known. some apologists in the comments claiming they are all the same...which is a weird claim for safety equipment.
the business address is a residential house. always a little sketch.
the name is hard to pin down. one nearby company does provide filtration for lab equipment but doesn't list this item on their website.
YMMV/Buyer Beware ...which for any safety/emergency equipment is an immediate pass for me.
I see it's being promoted by a Paid SD Staff Influencer...is this an affiliate? paid advert? any vetting/communication with the company to clear up the concerns? it's been pushed to Frontpage now. I also wonder if the phrasing "sharing this deal" is meant to be a CYA rather than claiming to have "found" this deal like some other posts or if it's just DE style choice
Be advised that these are not the well known life straw brand. They are even made with the same color etc to make people think they are life straw at first glance. They may work ok, I don't know. However when it comes to potential lifelines I try and stick to what I know I can trust. You don't skimp on those types of things.
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The Sawyer claims 75% thicker straw walls. That's how they claim a lifetime longevity; the stronger straws withstand infinitely more backflushes.
The lifespan rating on these indicate they are using the thinner walled straws similar to non-sawyer filters. The weight and low flow rating indicate they are using less straws than non-sawyer filters.
If you need 4 emergency filters as cheap as possible, better to have these than nothing. If it's just yourself and you will likely use a filter while backpacking, then get a sawyer squeeze. Families in developing nations have used a single filter to meet their drinking water needs for multiple households for DECADEs. Also keep in mind, there is no way to test if these have failed.
Can you provide a link to the product you are talking about?
Our community has rated this post as helpful. If you agree, why not thank TheXung
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from sam_ay
:
Can you provide a link to the product you are talking about?
This is the Sawyer Squeeze https://www.amazon.com/Sawyer-Pro...B00B1OSU4W. It's at an above average price right now. Usually, they're available for around $30. While the Lifestraw probably has the most brand recognition amongst the general population (because of first mover effects), the Sawyer Squeeze has pretty much been the gold standard amonst backpackers for the last decade.
Some critical flaws of the original Lifestraw are that it literally has no bottle threading, so its only use case is to use it like a straw, meaning lowering your head down to a water source and only drinking when you are at a water source or carrying your water in a wide mouth bottle like a nalgene because it's the fattest "straw" you've ever drank from. And because of the lack of bottle threading, you can only force water through by sucking, meaning sharing a filter between multiple people would mean everyone drinking from the same straw. Sucking from it also means you can't cook with it.
The Membrane Solutions imitation lifestraw at least has bottle threading, so it has none of the cons of the lifestraw. It's flow rate is really low though. The Sawyer Squeeze is rated for 1.7L/min (you probably can't get this theoretical 1.7L/min though; the most I've gotten is 1.5L/min). At 0.5L/min, this straw is less than a third of the Sawyer, and all filters will slow down even more as they get used. I'll use my Sawyer down to around 1L/min before I backflush it to clean it up, which I'm not even sure if this straw is designed to do or has assessories to facilitate.
In filter designs, there is a trade off between flow rate, filtering level, and amount of filtering material. You can increase the flow rate by either lowering the filtering level (0.2 micron vs 0.1 micron) or you can increase the amount of filtering material (causes the filter to weigh more). The Sawyer filters 0.1 micron at 1.7L/min and weighs 3 oz. This straw filters at 0.1 micron, 0.5L/min and weighs 2oz; it clearly has less filtering material to have a lower flow rate. The original lifestraw filtered at 0.2 micron, an unknown flow rate since you have to suck through it, and weighs 1.6oz. There are other backpacking filters out there, most of them filter at 0.2 microns, advertise a higher flow rate and weigh 2oz; they are sacrificing water safety for higher flow rates and achieving higher flow rates with more filtering material. The Sawyer is the only filter with a lifetime longevity.
This is the Sawyer Squeeze https://www.amazon.com/Sawyer-Pro...B00B1OSU4W. It's at an above average price right now. Usually, they're available for around $30. While the Lifestraw probably has the most brand recognition amongst the general population (because of first mover effects), the Sawyer Squeeze has pretty much been the gold standard amonst backpackers for the last decade.
Some critical flaws of the original Lifestraw are that it literally has no bottle threading, so its only use case is to use it like a straw, meaning lowering your head down to a water source and only drinking when you are at a water source or carrying your water in a wide mouth bottle like a nalgene because it's the fattest "straw" you've ever drank from. And because of the lack of bottle threading, you can only force water through by sucking, meaning sharing a filter between multiple people would mean everyone drinking from the same straw. Sucking from it also means you can't cook with it.
The Membrane Solutions imitation lifestraw at least has bottle threading, so it has none of the cons of the lifestraw. It's flow rate is really low though. The Sawyer Squeeze is rated for 1.7L/min (you probably can't get this theoretical 1.7L/min though; the most I've gotten is 1.5L/min). At 0.5L/min, this straw is less than a third of the Sawyer, and all filters will slow down even more as they get used. I'll use my Sawyer down to around 1L/min before I backflush it to clean it up, which I'm not even sure if this straw is designed to do or has assessories to facilitate.
In filter designs, there is a trade off between flow rate, filtering level, and amount of filtering material. You can increase the flow rate by either lowering the filtering level (0.2 micron vs 0.1 micron) or you can increase the amount of filtering material (causes the filter to weigh more). The Sawyer filters 0.1 micron at 1.7L/min and weighs 3 oz. This straw filters at 0.1 micron, 0.5L/min and weighs 2oz; it clearly has less filtering material to have a lower flow rate. The original lifestraw filtered at 0.2 micron, an unknown flow rate since you have to suck through it, and weighs 1.6oz. There are other backpacking filters out there, most of them filter at 0.2 microns, advertise a higher flow rate and weigh 2oz; they are sacrificing water safety for higher flow rates and achieving higher flow rates with more filtering material. The Sawyer is the only filter with a lifetime longevity.
Wow, that was a good educational write-up. Thank you!
Edit: not well known. some apologists in the comments claiming they are all the same...which is a weird claim for safety equipment.
the business address is a residential house. always a little sketch.
the name is hard to pin down. one nearby company does provide filtration for lab equipment but doesn't list this item on their website.
YMMV/Buyer Beware ...which for any safety/emergency equipment is an immediate pass for me.
I see it's being promoted by a Paid SD Staff Influencer...is this an affiliate? paid advert? any vetting/communication with the company to clear up the concerns?? it's been pushed to Frontpage now
As far aa I know, yes they are all basically the same. But the very first one to actually produce and be the original is the lifestraw back when they had that ted talk and actually had the funding to produce it. What followed were copies. But from my experience and based on the videos, especially ones that did a microscope testing, the best ones that are about quality is the lifestraw and the sawyer water filter. I would choose the sawyer water filter becuase it is .1 micron instead of lifestraws .2 micron, and lifestraw filters way less in its lifetime, and rightly so because lifestraw was in it's infancy. Meanwhile, sawyer water filter basically improved and upgraded everything.
I looked this up, sharing in case it help anyone else.
NSF stands for National Sanitation Foundation. It tests for pesticides, herbicides, heavy metals, microbial contaminants, and 280 banned substances. NSF-certified water filtration products are said to ensure safe and quality drinking water.
SGS is a Swiss multinational company that provides inspection, testing, verification, and certification services. In 2021, SGS was accredited by the American National Standards Institute (ANSI) to provide third-party certification of NSF/ANSI standards for food service and commercial appliance equipment products.
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I looked this up, sharing in case it help anyone else.
NSF stands for National Sanitation Foundation. It tests for pesticides, herbicides, heavy metals, microbial contaminants, and 280 banned substances. NSF-certified water filtration products are said to ensure safe and quality drinking water.
SGS is a Swiss multinational company that provides inspection, testing, verification, and certification services. In 2021, SGS was accredited by the American National Standards Institute (ANSI) to provide third-party certification of NSF/ANSI standards for food service and commercial appliance equipment products.
Yes, I see that the Amazon description says "Survival Gear for Outdoor Water Needs - SGS certificated, Test Report NBF21-004693-01." But when I go to the sgs.com website I find nothing when searching for that report number or for "Membrane Solutions". Do you have a link to the report? Thanks
I'm seeing $20. Only a $7 coupon. I bought these and the original. Better to have them and not need them than to need them and not have them. I really don't plan on using them unless there's an emergency. This is the #1 best seller in camping filters.
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Sorry, that was long winded.
Edit: not well known. some apologists in the comments claiming they are all the same...which is a weird claim for safety equipment.
the business address is a residential house. always a little sketch.
the name is hard to pin down. one nearby company does provide filtration for lab equipment but doesn't list this item on their website.
YMMV/Buyer Beware ...which for any safety/emergency equipment is an immediate pass for me.
I see it's being promoted by a Paid SD Staff Influencer...is this an affiliate? paid advert? any vetting/communication with the company to clear up the concerns? it's been pushed to Frontpage now. I also wonder if the phrasing "sharing this deal" is meant to be a CYA rather than claiming to have "found" this deal like some other posts or if it's just DE style choice
Edit 2:
https://www.mspurelife.
this might be their website
0% surprised to see they gave an affiliate/referral kickback program
website business address:
https://maps.app.urlhas
which then goes to this
https://www.membrane-solutions.com/
39 Comments
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The lifespan rating on these indicate they are using the thinner walled straws similar to non-sawyer filters. The weight and low flow rating indicate they are using less straws than non-sawyer filters.
If you need 4 emergency filters as cheap as possible, better to have these than nothing. If it's just yourself and you will likely use a filter while backpacking, then get a sawyer squeeze. Families in developing nations have used a single filter to meet their drinking water needs for multiple households for DECADEs. Also keep in mind, there is no way to test if these have failed.
Post a link to the "experts and science" and I might believe you.
Our community has rated this post as helpful. If you agree, why not thank TheXung
Some critical flaws of the original Lifestraw are that it literally has no bottle threading, so its only use case is to use it like a straw, meaning lowering your head down to a water source and only drinking when you are at a water source or carrying your water in a wide mouth bottle like a nalgene because it's the fattest "straw" you've ever drank from. And because of the lack of bottle threading, you can only force water through by sucking, meaning sharing a filter between multiple people would mean everyone drinking from the same straw. Sucking from it also means you can't cook with it.
The Membrane Solutions imitation lifestraw at least has bottle threading, so it has none of the cons of the lifestraw. It's flow rate is really low though. The Sawyer Squeeze is rated for 1.7L/min (you probably can't get this theoretical 1.7L/min though; the most I've gotten is 1.5L/min). At 0.5L/min, this straw is less than a third of the Sawyer, and all filters will slow down even more as they get used. I'll use my Sawyer down to around 1L/min before I backflush it to clean it up, which I'm not even sure if this straw is designed to do or has assessories to facilitate.
In filter designs, there is a trade off between flow rate, filtering level, and amount of filtering material. You can increase the flow rate by either lowering the filtering level (0.2 micron vs 0.1 micron) or you can increase the amount of filtering material (causes the filter to weigh more). The Sawyer filters 0.1 micron at 1.7L/min and weighs 3 oz. This straw filters at 0.1 micron, 0.5L/min and weighs 2oz; it clearly has less filtering material to have a lower flow rate. The original lifestraw filtered at 0.2 micron, an unknown flow rate since you have to suck through it, and weighs 1.6oz. There are other backpacking filters out there, most of them filter at 0.2 microns, advertise a higher flow rate and weigh 2oz; they are sacrificing water safety for higher flow rates and achieving higher flow rates with more filtering material. The Sawyer is the only filter with a lifetime longevity.
https://www.nsf.org/certified-products-systems
Search Membrane Solutions (this product) and/or Vestergaard (Lifestraw).
https://info.nsf.org/Certified/dw...ogram=DWTU
Membrane Solutions here, but nothing that looks like straws:
https://info.nsf.org/Certified/dw...ogram=DWTU
Some critical flaws of the original Lifestraw are that it literally has no bottle threading, so its only use case is to use it like a straw, meaning lowering your head down to a water source and only drinking when you are at a water source or carrying your water in a wide mouth bottle like a nalgene because it's the fattest "straw" you've ever drank from. And because of the lack of bottle threading, you can only force water through by sucking, meaning sharing a filter between multiple people would mean everyone drinking from the same straw. Sucking from it also means you can't cook with it.
The Membrane Solutions imitation lifestraw at least has bottle threading, so it has none of the cons of the lifestraw. It's flow rate is really low though. The Sawyer Squeeze is rated for 1.7L/min (you probably can't get this theoretical 1.7L/min though; the most I've gotten is 1.5L/min). At 0.5L/min, this straw is less than a third of the Sawyer, and all filters will slow down even more as they get used. I'll use my Sawyer down to around 1L/min before I backflush it to clean it up, which I'm not even sure if this straw is designed to do or has assessories to facilitate.
In filter designs, there is a trade off between flow rate, filtering level, and amount of filtering material. You can increase the flow rate by either lowering the filtering level (0.2 micron vs 0.1 micron) or you can increase the amount of filtering material (causes the filter to weigh more). The Sawyer filters 0.1 micron at 1.7L/min and weighs 3 oz. This straw filters at 0.1 micron, 0.5L/min and weighs 2oz; it clearly has less filtering material to have a lower flow rate. The original lifestraw filtered at 0.2 micron, an unknown flow rate since you have to suck through it, and weighs 1.6oz. There are other backpacking filters out there, most of them filter at 0.2 microns, advertise a higher flow rate and weigh 2oz; they are sacrificing water safety for higher flow rates and achieving higher flow rates with more filtering material. The Sawyer is the only filter with a lifetime longevity.
Edit: not well known. some apologists in the comments claiming they are all the same...which is a weird claim for safety equipment.
the business address is a residential house. always a little sketch.
the name is hard to pin down. one nearby company does provide filtration for lab equipment but doesn't list this item on their website.
YMMV/Buyer Beware ...which for any safety/emergency equipment is an immediate pass for me.
I see it's being promoted by a Paid SD Staff Influencer...is this an affiliate? paid advert? any vetting/communication with the company to clear up the concerns?? it's been pushed to Frontpage now
https://www.nsf.org/knowledge-lib...tification [nsf.org]
NSF stands for National Sanitation Foundation. It tests for pesticides, herbicides, heavy metals, microbial contaminants, and 280 banned substances. NSF-certified water filtration products are said to ensure safe and quality drinking water.
SGS is a Swiss multinational company that provides inspection, testing, verification, and certification services. In 2021, SGS was accredited by the American National Standards Institute (ANSI) to provide third-party certification of NSF/ANSI standards for food service and commercial appliance equipment products.
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NSF stands for National Sanitation Foundation. It tests for pesticides, herbicides, heavy metals, microbial contaminants, and 280 banned substances. NSF-certified water filtration products are said to ensure safe and quality drinking water.
SGS is a Swiss multinational company that provides inspection, testing, verification, and certification services. In 2021, SGS was accredited by the American National Standards Institute (ANSI) to provide third-party certification of NSF/ANSI standards for food service and commercial appliance equipment products.
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