Sawyer Select Water Filters and Purifiers

Sawyer Select Water Filters and Purifiers Branded

Greetings Adventurers!

Our good friends have introduced a new series of bottled water filters and after some initial use of them I wanted to share a bit about them. They are being branded as “Select Water Filters and Purifiers” with the term “Select” being part of their new “Select Foam System“, which means that beyond just the Sawyer filter on top of the bottle, these new filters have foam filters inside of them!

Through the use of Foam Adsorption Technology, in partnership with a company called Foamulations LLC, the combination of the foam filters and the Sawyer filter provides a double whammo on protecting you from unsafe water!

In order to house the new foam filter Sawyer has introduced a new silicon water bottle. This new silicone water bottle is squishy, so it allows you to squeeze the water out of the bottle, much in the same manner that a huge percentage of long distance hikers do with putting a Sawyer water filter on top of a SmartWater bottle.

The primary role of the new foam filters is to remove contaminants like heavy metals, chemicals, pesticides, and viruses while also improving taste and odor.

In addition to the new foam filters, Sawyer has introduced a new filter called the “Micro Filter”, which is third in their lineup of filters, after their original “Squeeze” and their more recent “Mini” filter.

Sawyer has introduced three new filters in this new “Select” lineup, which they are calling “S1“, “S2“, and respectively, “S3“, with each filter offering higher levels of performance.

New Water Filter:

Sawyer 'Micro Squeeze'To top off the new Sawyer bottles they have introduced a new water filter called the “Micro Filter“, which like the Squeeze and Mini is a 0.1 micron Absolute Hollow Fiber Membrane filter.

In my previous articles on the Squeeze and the Mini I have pretty much beat to death the importance of water filters being ‘absolute micron‘, but if you have not read read them and want to know all the details, by all means, meander over and read those previous articles. Suffice to say, you really want your water filters to be ‘absolute micron‘ level.

I do not have any information on why Sawyer decided to introduce this new “Micro Filter” instead of putting a Squeeze or Mini on top of the silicon water bottle. The one thing that I have noticed is that this new Micro Filter is significantly faster than either the Squeeze or the Mini. I have performed tests both at home and out on the trail and each time the Micro Filter has proven to have a higher flow rate, which I am sure we can all agree is a very good thing.

Silicon Bottle:

Sawyer Select, S3, ComponentsThe new silicon water bottle is a bit of an interesting thing. I am, thus far, having a like/dislike relationship with them. One the one hand it is nice to have a bottle that comes with a Sawyer filter (I have used the Sawyer Personal Water Bottle) and it is rather squishy and a good size and shape and the top does not, so far, seem to bend over from the weight of the Micro Filter. On the other hand is the fact that the silicon is rather difficult to get into my backpack’s shoulder strap pockets, side pockets, and back mesh pockets.

The bottles, according to Sawyer, hold 20oz/591ml of water. In my usage of the filters this can vary a small bit due to the foam filters inside of the bottle and how much water they have sucked up and are storing (Foam Adsorption).

Filter vs Purifier:

Without getting all technical and such, you can always do your own in-depth research on this topic, we need to remember that there are three or four things we typically need to deal with when it comes to water:  waterborne protozoa and bacteria, viruses, heavy metals.

Each of those three evils have their own methods of combat. For the vast majority of people in their adventures tend to only need to deal with waterborne protozoa and bacteria. Viruses present the next level of protection, and heavy metals is something most do not tend to deal with while out on their adventures, but that is not always the case.

Again, without getting all technical, and trying to keep things as simple as possible:

A filter is what is used to combat waterborne protozoa and bacteria.

A purifier is used to combat viruses.

A purifier is used to combat heavy metals.

So with all of that in mind, use that information as a basic guideline as to which of the three Select filters you think you need to buy and use.


Sawyer Select, S3, WeightThis was a tough one for me to deal with, because of the Foam Filters inside of the silicon bottles. At first I thought about weighing dry weight, then wet weights, then both. Eventually I decided against posting the weights of the bottles, because there are just so many unknowns at this point. Do all of the models have the same foam (no), do all of the models have the same weight of foam inside (pretty sure that is a no too), do the different tiers of foam hold more water than others, and so many other questions that come up that I just did not have the knowledge of at this time. Perhaps in the future this is the type of information that Sawyer will release to the public, but at this point they have not disclosed any of this information.

I took a picture of the S3, the most advanced version, on a scale and it is 259.9 grams (9.16 oz) with a dry filter and a dry bottle and dry foam. You can see all of the components that make up these filters in this photograph.

I was able to put the new Sawyer Micro Filter onto a scale and get the weight of it both wet and dry, and it is 47.3 grams dry and 64.8 grams wet. Compare that to a wet Squeeze at 87.9 grams and a wet Mini at 59.6 grams.

Where To Buy:

You can buy the new Sawyer Select Water Filter and Purifiers directly from the Sawyer website:


I am a sponsored hiker of Sawyer and you can see my sponsored page at:

Sawyer provided to me the three Select Water Filter and Purifiers.


4 thoughts on “Sawyer Select Water Filters and Purifiers

  1. Hi, nice article except for the distracting spelling error of Silicon vs. Silicone. Silicon is a rock hard crystalline element that is used to make computer chips, silicone is the soft rubbery substance used here. Good day.

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