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Sawyer Water Filter System - 4 Liter

    Sawyer Water Filter System - 4 Liter

    Think of water filtration in a whole new way with the quick and convenient gravity-powered Sawyer 4-liter water filter system. See details

    • $99.95

    Item # 778043

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    Think of water filtration in a whole new way with the quick and convenient gravity-powered Sawyer 4-liter water filter system.

    Product size and color
    * Color/Size is out of stock but can be backordered.

    Think of water filtration in a whole new way with the quick and convenient gravity-powered Sawyer 4-liter water filter system.

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    Think of water filtration in a whole new way with the quick and convenient gravity-powered Sawyer 4-liter water filter system.

    • Utilizing a hollow fiber membrane filter, the Sawyer system yields 4 liters of potable water in as little as 3 min.
    • Simply fill the included reservoir with unfiltered water, attach the filter and hoses and let gravity do the rest to fill your own hydration reservoir or water bottle
    • Filter physically removes particles, protozoa, and bacteria down to 0.1 micron in size, including giardia, salmonella and cryptosporidia
    • All Sawyer water filters exceed Environmental Protection Agency (EPA) recommendations for removal rates
    • Filter is fully field maintainable to ensure a fast flow of water; system includes a faucet adapter for thorough back washing from a household faucet
    • Setup is simple and the system packs easily, weighing in at only 12 oz.
    • This Sawyer water filter system comes with a Million Gallon Guarantee, essentially eliminating the need to ever have to replace the filter cartridge
    • System includes a 4 liter reservoir, hollow fiber filter, faucet adapter, filter tube, quick-release hose adapter, Nite Ize S-Biner hanging loop and instructions for use
    • Please note: Take care not to let your filter freeze as this could damage the filter housing or the fibers themselves

    Made in USA.

    Item 778043

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    Sawyer Water Filter System - 4 Liter Specs
    Best use
    Hollow fiber membranes
    Protozoa and bacteria
    Not applicable
    Not applicable
    1.7 liters per minute
    Food grade ABS plastic
    20 x 10 inches
    12 ounces
    Filter type
    Filter medium
    Pump force
    Pump strokes per liter
    Housing material
    Field cleanable

    Sawyer Water Filter System - 4 Liter

    Loading Ratings & Reviews...

    Sawyer Water Filter System - 4 Liter is rated 3.8571 out of 5 by 7.
    Rated 5 out of 5 by from Simply Amazing This filter literally saved our lives at the bottom of the Grand Canyon. While we brought a soft-sided bag to settle out the silty Colorado River water, we weren't prepared with how silty it really was. Our technique was to let the water settle for 2 hours, decant the top bit of "clean" water, and then let more water settle, decant, repeat. We'd fill the dirty bag with water, and we'd be able to filter a full 3 liters before using about a half-liter of clean water to backflush. Reading some of the reviews, it seems there might be a misunderstanding on how to backflush. We didn't wait until we got home - we simply disconnected the dirty bag from the filter (our filter plugged right into our Platypus bladders), we'd squeeze the Platypus bladders pretty hard, and what came out can only be described as thick, muddy water. We'd keep pushing water through until what came out was completely clear. We filtered over 50 gallons of water this way without issue. This would have *never* worked with our old MSR pump filter. So, we are in a habit now of always disconnecting the dirty bag from the filter, pushing a bit of clean water back through the filter, and then putting everything away. If your filter starts to slow down, just disconnect the dirty bag, and squeeze the clean bag until the flow is clean coming out of the dirty end of the filter. I can honestly say we'll never own any other filter than this for a long time.
    Date published: 2014-04-01
    Rated 5 out of 5 by from works great/diminshed flow issue This water filter works great. I hiked the Long Trail last October w/o any issues. This comes w/ me on any camping trip whether its backpacking or just car camping w/ friends. Beats a pump filter anyday. People complain about diminished flow. Its not the filter becoming clogged, its an airflow issue. If you take a full bladder of water and hook up the filter already attached to the hose it will trickle, most likely because there is air in the line. What I do is hook up the hose to the bladder, open the valve and let a little flow out, block it w/ my thumb and then quickly attach to the filter. This has made it flow perfect every time. I used it for 3 weeks straight everyday w/o issue. Good product.
    Date published: 2014-04-01
    Rated 5 out of 5 by from Simple and effective Bought the Sawyer filter for a week-long canoe trip in the Quetico that we completed last week. Worked as advertised. Simple to use and reasonably substantial flow. No problems keeping two people in water for a week without backflushing. Suspect those who complain about only getting a couple of days out of the filter in the BWCA ran into the tiny "tapioca bugs" (can't remember the scientific name) that would clog ANY filter. Now, if it could just eliminate the mosquitoes...
    Date published: 2014-04-01
    Rated 1 out of 5 by from Great idea but clogs easy I bought one for the backpacking season this year. Initially it worked great, but after several 4 day trips the flow diminished to a trickle. After getting home and back flushing it, I used it again this past weekend and after one day it reduced to a trickle again. I am filtering clear clean Sierra water, so clogging shouldn't, be a problem. Great idea, but definitely false advertising with a million gallons.
    Date published: 2014-04-01
    Rated 4 out of 5 by from Good to the last drop I had a used a competitor's product for a couple of years until the filter became plugged. There is no way to backflush the filter on that unit. I decided to purchase this filter rather than spend 70% of the total cost of a new system for a new filter. I liked the ability to backflush the filter to prolong the life. I used this filter on a recent 8 day hunting trip. The water flow through filter slowed considerably after about the fifth day, but it still worked. I haven't tried it since backflushing it. It would be nice to have a clean water bag, but I was able to use the clean water bag from my previous filter. The only complaint I have is that the backflush fitting doesn't hold tight enought to withstand the pressure required to backflush the unit. You have to firmly grip the faucet connector and hold it to keep it from coming off the faucet. The rubber faucet connector became very soft and stretched out after one backflush. This may not hold up for too many more backflushes.
    Date published: 2014-04-01
    Rated 5 out of 5 by from Good System! After purchasing and returning another gravity filter, I decided to give the Sawyer a try and I was not disappointed. I used this on a 5 day trip to the BWCA with 8 other people. We needed a lot of water and this unit worked well. It did slow down on the last day, but I was able to blow/back flush and the water returned to an acceptable rate.
    Date published: 2014-04-01
    Rated 2 out of 5 by from Narrow temp range; clogs quickly I bought this for backpacking with a group of 4, thinking that it would be easier to make water at camp without having to squat on a rock for 15 minutes while pumping to fill a medium Dromedary bag. While not mentioned on the product specs online, the instructions in the box state that you can't let it freeze (not unusual for water filters), but that you couldn't let it get too hot either. They basically state that you can't leave it in a closed up car that is parked in the sun. I'm not sure about other folks, but I don't buy gear that I need to baby, and I don't intend to leave my windows rolled down when leaving my pack in the car for an afternoon. I wrote customer service to mention my negative surprise (their packaging has lots of "tell us how we're doing!" comments on it). I never heard back. Nothing. Not even a form "thanks for your email". The only thing more disappointing than manufacturers that don't stand by their products is a manufacturer that actively solicits feedback, then igores it. The filter isn't as wonderful as I had hoped. It clogged pretty quickly using clear lake water. It was nice to be able to back flush it in the field, but my old MSR only required field maintenance on occasions when I was forced to pump from less-than-ideal water sources. Long story short, it seemed like a great change of pace, but between the temperature limits, fast clogging, and slow throughput, I'm missing my old pump.
    Date published: 2014-04-10

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