If you are impressed with the efficiency of gravity-type filter like the Platypus GravityWorks, but is not comfortable on spending beyond the hundred dollar range, then this product is for you. The MSR Autoflow is very much similar to the editor’s pick device in our last entry – both portable water filters produce large quantities of filtered water; they both come with 2 bags for more fresh water storage; and they both filter water at a faster rate. The main difference: the price, since the MSR Autoflow costs only $99!

And what’s even better is that this product now comes in a 2-liter pack that is perfect for single use or to share with a friend.

Now look at some of the things you are getting once you get the MSR Autoflow Gravity Water Filter:

Known Issues: According to some reviews, the MSR Autoflow Gravity Water Filter is made of less durable materials. Hence, it is not recommended for long-term use. Other than that, the bottle adapter of this product is purportedly insanitary, but can be easily cleaned for next use.

One of the impressive portable water filters from the MSR brand other than the abovementioned, the MSR Miniworks EX Water Purifier is ideal for globe trekking individuals who love to explore scenic outdoor places that don’t usually have access to clean water. And though pump-type filters are known to be a less popular choice in the backpacking community, we still recommend this product for lightweight design and its fast rate in filtering water.

Now look at some of the things you are getting once you get the MSR Miniworks EX:

Known Issues: Unlike the portable water filters we have previously featured, the MSR Miniworks EX requires manual pumping. Also, some users have mentioned that the quantity of filtered water collected will actually depend on the amount of manpower energy that is being exerted.

And if you want to pack lightly for your next adventure trail or just a health conscious guy who loves to jog during your spare time, the Katadyn BeFree will prove to be your best companion to keep you hydrated in these situations. We are so impressed by this product that we found it as tough contender for our editor’s pick choice (which was already awarded to one of the featured products in our top 3 picks for portable softeners article).

The Katadyn BeFree weighs at just 2.3 ounce and this water filter works like your usual water bottle. Just fill it up with water and drink as you go on hiking, fishing, or mountain biking.

Now look at some of the things you are getting once you get the Katadyn BeFree:

Known Issues: The Katadyn BeFree is not designed for long trips as it can only filter 20 ounces of tainted water at a time. Also, it is intended for individual use so you have to buy more units if there are 2 or more members in your group.