MSR SweetWater Microfilter Review! Life Saver in Emergency Situation

Whatever you want from a water filter is to be sure that you drink fluids that will not make you ill, but it will be fine if the screen did not take up much room in your backpack, and regarding flavor: the sweeter, the better. The SweetWater Microfilter sits directly in the center of MSR's filter concerning weight and endurance.


MSR SweetWater Microfilter Review

MSR Sweetwater Microfilter
  • Testing: Testing: Meets NSF protocol P231 for removal of bacteria (99.9999%) and protozoa (99.9%) from beginning to end of filter life in “worst-case” water.
  • Fresh Tasting Water: Activated carbon core helps eliminate taste and odors.
  • Easy to Use: Unique lever-action pump handle has a 4-to-1 mechanical advantage,
  • Lightweight: Weighing just 11 oz., it's one of the lightest filters on the market.
  • Compact: Handle folds flat when not in use for easy packing and storage.

Last update on 2020-06-02 / Affiliate links / Images from Amazon Product Advertising API


  • Sturdy lever-action pump handle supplies a 4-to-1 mechanical edge draws water to both down and up stroke
  • Lightweight polyester construction is durable and sturdy; streamlined design stows easily
  • Constructed filter replacement security index keeps tabs on use, filters up to 200 gallons
  • Carbon microfilter Gets Rid of waterborne bacteria and protozoa like giardia and cryptosporidium

Pros & Cons of MSR SweetWater Microfilter


  • Includes a shelf-stable and easy-to-dispense 3.5percent hypochlorite solution.
  • Includes a shelf-stable and easy-to-dispense 3.5percent hypochlorite solution.
  • Once the remedy is utilized with the filter, then it satisfies EPA certificate for a purifier.


  • A few ounces heavier than my Katadyn and several ounces more substantial than my Survivor Filter

What's in the Box?

The system includes 1 SweetWater microfilter, 80-micron stainless-steel prefilter, (2) color-coded silicone hoses, foam float, water bottle adapter, cleaning brush, and stuff sack.

Recital Assessment

Very Simple To​​​​ Use

The notable detail is that the handle. It unscrews and detaches so it can fold better for storage. The Sweetwater is simple to push. How that this attaches and detaches isn't the most intuitive, but when you find it out after, it's straightforward; reattaching the manage adds yet another step for this pump compared to some of the other people possess. 

If the handle is attached, it's more leverage and is much more comfortable to use compared to the grips of different filters such as the Hiker Pro, even though we still favor a conventional pump handle such as the MSR Guardian for pumping.


It's reliable to be used in the backcountry, may accumulate water from small, hard sources, and may handle enough water for a single hiker. The silica thickness filter is good at removing bacteria, protozoa, compounds, and parasitic, but viruses.

​This filter is excellent for 750 liters before having a replacement cartridge. This isn't anywhere near as much ability as a ceramic filter such as that at the MSR Miniworks EX or gravity filters such as the Katadyn Gravity Camp 6L, that can be great for 2000 liters and 1500 liters respectively, however, may filter over the MSR Aqua tabs.

​The Sweetwater feels slightly more delicate and contains more meeting and components compared to other more lasting filters within this review such as the Katadyn Vario. The deal, which feels very ideal for pumping, and which detaches to pack better down, was reported by a few users to split.

​We are not surprised, because it's little parts which must be adjusted into position every time, leaving space for user error. This is the sole durability problem we've encounter for this filter.

The water taste remains mainly unchanged. Compounds are eliminated via the filter, which may make water taste better.


Simple to pump using a handle manage, the Sweetwater requires a bit over a minute and a half to pump a liter, which isn't long to wait, but isn't quite as fast as the Vario that requires a fast 47 seconds along with the Gravity Camp that needs 40 minutes per liter with no attempt in any way.

What Others Say on MSR SweetWater Microfilter

It's user-friendly, lightweight, streamlined, and its own comprised Nalgene bottle adapter assisted to simplify filling in awkward areas, and also the sanitary cover helped maintain it tidy. 

We had lots of water resources, and one specifically in Dusy Basin into the naked eye was crystal clear as the rest, but always the inner filter could clog up from it (the nozzle filter was apparent) which revealed just how much the screen was grabbing.

After on the Kings, Riverwe stuffed the Nalgenes 20-25 times with no need to wash out the internal filter. Upon returning into Dusy, we experienced the same clogging which affirmed the screen was doing something! Furthermore, it's comprised brush to wash out the screen and layout of this filter to lessen the prospect of cross-contamination was well thought out.

MSR SweetWater filter - Video Review

MSR SweetWater Microfilter FAQs

Question: Can it match a Nalgene bottle such as the MSR Miniworks?

Answer: It's an adapter that matches a couple of clear bottles, such as a full mouth Nalgene.

Question: Why does this filter out of ordinary substances like pesticides and road runoff (gasoline, petroleum and such)?

Answer: No, not exactly what the filter is intended to do. It can filter out the germs and amoeba, but it won't separate dissolved minerals which are in the water. You'll require another kind of filter for your skin.

Question: Can this freeze when applying for winter lifts?

Answer: I presume that if there's water from the filter and you're in below freezing conditions, it is going to freeze. MSR recommends freezing the screen if not used for quite a while, but I did this along with the screen deciphered.

Final Thoughts

Natural, powerful water filtration for biking and biking. Comfortable, lightweight and flexible, it is the ideal water treatment alternative for mild to medium usage, together with the capability to readily step-up into the requirements of the occasional huge excursion. So expect this is a good alternative I think.