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Description

Extend the life of your Autoflow Filter.

Having flow problems? Breathe new life into your Autoflow Gravity Filter with the MSR Autoflow Replacement Cartridge. This cartridge has a life expectancy of up to 1,500 liters depending on water conditions, and it filters nearly two liters of water per minute.

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MSR Autoflow Gravity Filter Replacement Cartridge

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Here's what others have to say...

5 5

Easiest filter to use

  • Familiarity: I've put it through the wringer

We use this on a daily basis to filter water at our yurt. We froze the first filter, but have been using the replacement filter daily (~5 liters/day) for about a year now on water that is full of minerals and moderate sediment when the creek is running fast. It has slowed down, but it still works. Since you don't have to do anything but wait for the water, the fact that it takes ~8 minutes to filter a gallon of water is no big deal. Way easier than pumping, and I plan on using it in the backcountry this summer because of that.

Used the Miniworks EX Microfilter a total...

Used the Miniworks EX Microfilter a total of three times. The last time was around a year ago. Now when I try to use it no water is being filtered through. Looks clean and not worn to the level of replacement. How do I get water to go through the filter again?

Responded on

Try back flushing a ditilled gallon or so through it. If it doesn't work after that, it's replacement time. Good luck.

Responded on

Are you getting resistance or not? If not, you likely need to replace gaskets or lube some things to get a positive seal again. If you are getting too much resistance, call their customer service dept. They can talk you through it.

Unanswered Question

I used this filter last summer and didn't...

I used this filter last summer and didn't put it away according to the directions. (I didn't disinfect it) Can I run water with bleach through it and reuse it or do I need to purchase a new one?

I used this filter last summer and didn't...

I used this filter last summer and didn't put it away according to the directions. (I didn't disinfect it) Can I run water with bleach through it and reuse it or do I need to purchase a new one?

Responded on

No need to buy a new one. Run a 2tbsp per liter bleach mix through it on a back flush and then a couple more liters of fresh water at the regular flow direction. Good as new.

just wondering if this can be used as a...

just wondering if this can be used as a replacement for the platypus gravity flow system?

Responded on

They're both in-line gravity flow systems with the same tubing diameter, both made by Cascade Designs, both roughly the same filter for the same price, so, although I've never tried it, it stands to reason that it would work. But why not just get the Platy filter cartridge?

Responded on

yes - but the new GravityWorks filter is lighter.

can i connect this to my camelbak out hose...

can i connect this to my camelbak out hose and then another piece of hose with a bite piece so i can just fill the water bladder up with creek water? or use it as a hang bag to fill my nalgenes up? seems like a way cheaper way to make your own gravity filter.

Responded on

this my plan too...or if u have an old camel back/platy bladder that's gotten a little funky, you can use it to hold the dirty water and flow into your good bladder. I'm adding an old PUR inline carbon filter to my system as well :)

2 5

1500 is unrealistic

The MSR gravity filter I used was given out as part of the cache was given for leading a volunteer trail crew. After two ten day hitches the carbon paper filter needed hours to filter any amount of water. Granted I work in New Mexico where the water is silty to say the least, however I got less than 100 gallons of water out of it. If you plan to use it in New England or someplace with clearer water I guess it is worth it, however strain it through a bandana first otherwise it's life is incredibly limited.

Responded on

This filter is not the best for silty/volcanic/dusty water as the fabric will tend to clog easily is such conditions. Under circumstances like you are describing you have to keep regular maintenance up quite a bit. This would mean filtering 4l and backflushing 1 of those every single time. Without constant, regular backflushing the fabric will need a massive amount of backflushing later and might even need replacement.

Responded on

He wasn't referring to the Autoflow. There's no "carbon paper" - this is a hollow fiber membrane. In exceptionally dirty water, it is recommended to pre-filter the water if possible, but as David suggests, backflushing (holding the clean vessel above the Dirty Collection bag to reverse flow) takes only about four seconds and should be done after each use. In fact, even if you have relatively clean water to filter, this is so easy, it's a good habit to get into and will greatly extend the life of your filter.

Responded on

I see this same review crop up on numerous sites making the exact same claim from someone working on a trail building crew. The problem with this review is that I see it applied to numerous MSR water filtration products.

I can't help but believe this is someone with nothing more than an axe to grind against MSR like a competitor or something.

As Jim pointed out this filter does not use paper, but is a hollow tube model so there is no way he could be describing this filter.
But to my knowledge this is the only MSR filter that makes the 1500 liter claim.

So I'm fairly certain this is not a review from someone who actually bought and used this product.