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MSR
TrailShot Microfilter

3.5416666666666665 out of 5 stars
96 Reviews
$62.95
Color:One Color

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TrailShot Microfilter

From ultralight backpacking trips to epic mountain bike rides, the MSR TrailShot Microfilter provides ultra-compact purification, allowing you to drink directly from streams and lakes on the trail. Tipping the scales at a mere 5.4 ounces, the TrailShot tags along in your pack without the bulk or weight of traditional water filters.


The one-handed pump action efficiently filters water of common contaminates, including bacteria, protozoa, and suspended particulates. When it's time to clean the filter itself, simply shake it a few times and get back to filtering water from the stream or lake. It treats up to 2,000 liters of water before requiring a replacement and cleans one liter of water in a mere 60 seconds.


Details

  • Ultra-compact water filter for outdoor adventures
  • 5.4-ounce weight satisfies ultralight backpackers
  • One-handed pump action with shake-to-clean design
  • Filters out bacteria, protozoa, and particulates
  • Meets NSF Protocol P231 filtration standard
  • Treats 2000 liters before needing replacement
  • Filters one liter of water in 60 seconds
  • Item #CAS009O
Purifying Element
hollow fiber technology
Eliminates
bacteria, protozoa, particulates
Cartridge Life
up to 2000L
Action
one-handed pump
Flow
1L/60sec
Field Cleanable
shake to restore flow
Claimed Weight
5.4oz
Manufacturer Warranty
limited 3 years

Overall Rating

3.5 based on 96 ratings

Review Summary

1 Stars - 21 reviews
2 Stars - 11 reviews
3 Stars - 6 reviews
4 Stars - 11 reviews
5 Stars - 47 reviews

Fits Slightly Large

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1 out of 5 stars

July 8, 2024

Great when it worked, those couple times..

Great filter when first purchased. Followed manufacturers instructions for handling, cleaning and storage. Despite this, the filter no longer worked after long term storage. It had only been used for two trips of approx 4 days each in length to filter water for one person.

J D.
a Cascade Designs brand site

Originally reviewed on a Cascade Designs brand site

1 out of 5 stars

June 6, 2024

It didn't suck (and that was the problem)

After three days on the Long Trail, my brand new Trail Shot stopped sucking. I tried to bring it back, but it was not happening. I had drops for backup. At the first trail town, I found a supplier. They agreed it was broken, and the (very) limited lifetime warranty consisted of paying retail for another filter. I won't be back.

Bruce J.
a Cascade Designs brand site

Originally reviewed on a Cascade Designs brand site

1 out of 5 stars

June 5, 2024

Broke down after two weeks

After two weeks of use my msr trailshot broke and no longer filters :(

Filip H.
a Cascade Designs brand site

Originally reviewed on a Cascade Designs brand site

1 out of 5 stars

March 14, 2024

Just stopped working

I purchased this as a primary water filtering unit while on the go and at first it worked pretty good, it was slow to pump the water but the unit is so small what more could I hope for. I kept up on the cleaning and maintenance as directed and always took very good care of the unit. One day on a four day backpacking trip I was trying to pump water out of a stream and it just would not work, after inspection it seems the seals common to the body just gave up and air is able is getting pumped in and out instead of water. Very disappointed considering I only used it a handful of times.

Stephen
a Cascade Designs brand site

Originally reviewed on a Cascade Designs brand site

3 out of 5 stars

January 11, 2024

Bolb discoloration

First time i'm writing a review And the filter work great over my weekend Hike it when I got back read the instructions and it said to sterilize it For long term use I have said to you six times A iodine tabs and leave it for a half hour which I did And now the bold has a severe discoloration to it

CILLER54
a Cascade Designs brand site

Originally reviewed on a Cascade Designs brand site

5 out of 5 stars

September 3, 2023

Compact, easy to use, best

Compact, easy to use, best filter on the market!!! I had an issue with my original filter and your service department made it right. Great service, thank you !!!!

James P.
a Cascade Designs brand site

Originally reviewed on a Cascade Designs brand site

1 out of 5 stars

July 30, 2023

Used it for 5 years- but never will again

I've been using the trailshot for 5 years now, and I used to love it, but after this last trip, I've decided I need to find another option. I follow all the care and maintenance requirements, which I quickly learned in my first year are very very necessary to keep it working properly. Sometimes it slows down a bit and the filter replacements are pricy, but it's perks often made up for a decreased flow from time to time. However, on my last trip (two nights in the backcountry), it couldn't seem to handle any water with tannins in it- which happens to also be the only water around. I tried a flowing river, a small stream, a lake, and also from a collapsible bowl. It was a brand new filter and it worked perfectly on my tap water before we left. I tried all the troubleshooting on the trail: cleaning the filter, checking the pre-filter parts, etc. Still, the pump could scarcely pull any water through. We had to resort to our backup water purification tabs and give up on the filter entirely. I never want to end up in this situation again. I will be looking for a new filter option and will not recommend this product anymore.

Rowan
a Cascade Designs brand site

Originally reviewed on a Cascade Designs brand site

5 out of 5 stars

June 12, 2023

Amazing 1-person Filter

Love this filter!! It takes up almost no space in your pack. I really like the option to drink straight from it, and when I fill bottles, it goes quick. The plastic doesn't 'rebound' as quick as I'd like when filling, but it'll still fill a few liters quickly. Definitely only good for 1 person, maybe 2. Wouldn't plan to have a whole team using it, but thats not what its for. Prefect for 1 person though. Great addition to my pack!

Richard K.
a Cascade Designs brand site

Originally reviewed on a Cascade Designs brand site

5 out of 5 stars

May 25, 2023

Remplacer le filtre

Bonjour, J'aime bien ce filtre. Léger et compacte. Quand devons-nous remplacer le filtre? Merci!

Genevieve
a Cascade Designs brand site

Originally reviewed on a Cascade Designs brand site

1 out of 5 stars

May 14, 2023

Brand new and it is not working

I bought one few years ago and worked pretty well, altough not for very long... I bought recently a new one ans he is not working. The water stay in the caoutchouc bulb and no waterproof is going through. I'm very disappointed because it's expensive.

Catherine
a Cascade Designs brand site

Originally reviewed on a Cascade Designs brand site