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Details

  • Filter physically removes particles, protozoa, and bacteria down to 0.2 microns in size, including giardia, salmonella, cryptosporidia and others
  • Glass-fiber element is pleated for increased surface area to handle silt and muddy water
  • Activated-carbon core adsorbs chemicals and pesticides to improve taste of water
  • Aproximately 48 strokes per min. provide 1 liter of clean drinking water
  • Pre-filter at hose inlet filters to 150 microns, removing larger contaminants before they reach the main filter to increase its life span
  • Included adapter allows the filter output hose to attach to the quick-connect fitting built into some hydration reservoirs (reservoir not included)
  • Katadyn Hiker water filter includes a carry sack and bottle adapter that fits most water bottles

Imported.

Weight reported dry, without accessories.

View all Katadyn Pump Water Filters

REI membership

Specs

Best Use Backpacking
Filter Type Pump
Filter Medium Pleated 0.2 micron glassfiber/carbon core
Removes/Destroys Protozoa and Bacteria
Pump Force 8 pounds
Pump Strokes Per Liter 48
Output 1 liters per minute
Housing Material ABS plastic
BPA Free Yes
Dimensions 6.5 x 3 x 2.4 inches
Weight 11 ounces
Rated 5 out of 5 by from 18 years and still works great! I bought this filter 18 years ago for a trip to the Boundary Waters. I like cold water and hate waiting for tablets to work, so this was the way to go. This filter has pumped 100's of gallons of water for me and my friends over the years from the Boundary Waters, PA, CO, ME and probably many other places I've inhabited since it was new! I'm so glad they still make filters for it. That's actually why I'm writing this review, I'm online tonight buying another cartridge for it. This pump will give you a work out, and if the water is silty/murky wrap a bandana or piece of cloth around the acorn. When you get home pull it apart dry everything out and you will have many years of great use!
Date published: 2013-10-13
Rated 3 out of 5 by from Nipple broke While using this product on our second backpacking trip, the inlet nipple on the filter snapped off rather easily while removing the inlet hose. This was only the 9th time the product had been used. Considering its use as an outdoor product, I have to say the product design was not rugged enough. Although the nipples are recessed into the filter, that did not prevent the design flaw that caused it to snap off at the base. I did not use any lateral pressure when removing the hose. This flaw left me in the backcountry with a broken water filter. Fortunately, I was still able to use the filter without the inlet hose by submerging the inlet end of the filter in the water source.
Date published: 2010-04-01
Rated 1 out of 5 by from Don't Rely On This Filter Although I used this thing gently and only filtered about 4 gallons of water through it total, the lower nipple broke off when I removed the silicon inlet tube. I'd read other reviews where folks complained of a weakness in the design of this area, but assumed they were careless in their use of the filter. All I can say is that I was especially careful with mine and still it broke off. Now the filter is useless. If I had it to do over again, I would not buy this filter. Of course, I recommend that you do not buy this, as it will leave you in a pickle some day when you need water. If you buy it anyway, please carry iodine tablets (as you should with ANY filter), or have some other backup water source—you'll need it.
Date published: 2010-04-16
Rated 2 out of 5 by from Broken on first use Initially, I was very impressed with the simplicity of this filter (and price). As I went to break everything down and put it back in the pack, I noticed a plastic nipple in the end of the hose I had just disconnected - it was the nipple for the inlet and it had broken off the filter upon removing the hose, rendering the filter useless. Fortunately, this was a "trial run" a week before a long hike, but if I had been in the backcountry, this would have been a major problem. I expect that REI will exchange it and I will definitely use extreme caution from here on, but I'll also always carry a backup method of purification.
Date published: 2010-01-10
Rated 4 out of 5 by from Proved itself worthy in the feild I use this product on multi-day backpacking trips on the Appalacian trail, for myself and my two sons.On these same trips a freind had the MSR brand filter.For the amount of exertion needed, the Katadin hiker produced more water and was physically easier to use than the MSR. My freind borrowed the Katin hiker and the next week he bought the Katadin hiker.I also found the Katadin easy to disassemble and clean. The reason my freind bought the MSR is that he was told the replacement O-rings can be found at any hardware store,where as the Katadins parts arent standard size. Although Im not sure that this is true or not.
Date published: 2007-09-17
Rated 1 out of 5 by from Breaks easily This pump works reasonably well while it lasts. However, this last summer I have seen 4 of them fail on 3 separate trips in the exact same way - the plastic casing of the pump splits apart at the seam and the pump can no longer maintain adequate pressure. In one backcountry trip we brought 2 of these to be safe and they BOTH failed. So in summary this is a very lightweight pump that works reasonably well. Just don't take it anywhere where your life depends on it.
Date published: 2012-12-16
Rated 5 out of 5 by from Top of the Line After having tried many different filter systems, I will never buy another filter other than the Katadyn Hiker. Tired of slow output, quirky, cumbersome, heavy filter methods? I was too and this filter has proven to be better than I could have imagined. In a matter of minutes, I can fill all of my water containters and not be completely out of breath and drenched with sweat in the process. Convenient carrying case, easy to operate, simple to clean, long lasting filter... need I say more? Spend a few extra dollars, trash your garbage filter, and get the Hiker.
Date published: 2013-03-02
Rated 5 out of 5 by from Love it! I've had this for maybe 8 years or so. I use it on maybe 4 backpacking trips a year. It's always done a great job and I love it. It's light, small, and with the gallons and gallons of water I've drank through it, I've never gotten sick, so I imagine it's working quite well! I've never had to clean the filter or do any maintenance. I just let it air out to dry at the end of each trip. I think the only other thing I would want in a water filter is an automatic pump. The pumping gets a little tedious at times when filling up several bottles. I don't really know if that exists, or if it does, what it would cost or weigh, but bottom line is that compared to boiling water to sterilize it, and compared to drinking unfiltered water, I think this must be one of the best, lightweight options for filtering water out there.
Date published: 2014-07-14
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My water was brown and there were a couple of decent sized specks of dirt at the bottom of my bottle after pumping from a river that's brown due to silt and sand. Is this normal?

Asked by: LC_Rider
one thing that helps in dirty water is to wrap a paper coffee filter around the inlet to filter out the really large chunks
Answered by: Deek
Date published: 2017-07-18

What are the differences between the Katadyn Hiker Water Filter and the Katadyn Hiker Pro Water Filter?

Asked by: duck
They use the same filter system. The Hiker Pro has 30% more capacity, which makes it faster. It also has quick-release fittings, which means the output hose can attach directly to most hydration reservoirs. You will find it here: http://www.rei.com/product/830745/katadyn-hiker-pro-water-filter
Answered by: REIservice
Date published: 2017-03-16

What am I doing wrong with this pump.  The first 30 liters are GREAT and then the pumping gets harder and harder.  I have tried three of them and it is the same every time.  The water is crystal clear that I have been pumping.

Asked by: sunchipper
Cartridge capacity depends on water quality. The Katadyn Hiker was tested at 750 liters and found effective for removal of bacteria (Klebsiella terrigena) and protozoan cysts (Giardia and Cryptosporidium). For maximum performance, cartridge should be replaced after 750 liters or when the unit becomes hard to pump. Be sure to follow the instructions in the manual for cleaning after each trip. The manual can be downloaded off the Katadyn website.
Answered by: REIservice
Date published: 2017-07-18

Where can you buy replacement hoses for the Hiker Pro?

Asked by: Kevin317
Please consult the manufacturer's website for more information regarding replacement parts.
Answered by: REIservice
Date published: 2017-07-18

I have a Base Camp Water Microfilter (Back Country Series) that has never worked. I bought it from you several years ago, took it to the Quetico and it leaks around the threaded cap when tightened but not while loose. Help???

Asked by: Mac from Michigan
Please contact us at 1-800-426-4840 or contact the manufacturer directly for assistance with your water filter.
Answered by: REIservice
Date published: 2017-06-15

What is the replacement filter for this item (as opposed to the Pro model)?

Asked by: Jen84004
The Hiker Pro Element is the replacement filter for the regular Katadyn Hiker as well: http://www.rei.com/product/724044/katadyn-hiker-pro-element
Answered by: REIservice
Date published: 2017-07-12

Are the filters for this unit interchangeable with the similar looking old Pur filters??

Asked by: mtnbear
Replacement filters for this unit can be found here. https://www.rei.com/product/724044/katadyn-hikerhiker-probase-camp-replacement-element
Answered by: REIservice
Date published: 2017-07-18
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Back to top

Please select a color/color.

Reviews

Rated 5 out of 5 by from 18 years and still works great! I bought this filter 18 years ago for a trip to the Boundary Waters. I like cold water and hate waiting for tablets to work, so this was the way to go. This filter has pumped 100's of gallons of water for me and my friends over the years from the Boundary Waters, PA, CO, ME and probably many other places I've inhabited since it was new! I'm so glad they still make filters for it. That's actually why I'm writing this review, I'm online tonight buying another cartridge for it. This pump will give you a work out, and if the water is silty/murky wrap a bandana or piece of cloth around the acorn. When you get home pull it apart dry everything out and you will have many years of great use!
Date published: 2013-10-13
Rated 3 out of 5 by from Nipple broke While using this product on our second backpacking trip, the inlet nipple on the filter snapped off rather easily while removing the inlet hose. This was only the 9th time the product had been used. Considering its use as an outdoor product, I have to say the product design was not rugged enough. Although the nipples are recessed into the filter, that did not prevent the design flaw that caused it to snap off at the base. I did not use any lateral pressure when removing the hose. This flaw left me in the backcountry with a broken water filter. Fortunately, I was still able to use the filter without the inlet hose by submerging the inlet end of the filter in the water source.
Date published: 2010-04-01
Rated 1 out of 5 by from Don't Rely On This Filter Although I used this thing gently and only filtered about 4 gallons of water through it total, the lower nipple broke off when I removed the silicon inlet tube. I'd read other reviews where folks complained of a weakness in the design of this area, but assumed they were careless in their use of the filter. All I can say is that I was especially careful with mine and still it broke off. Now the filter is useless. If I had it to do over again, I would not buy this filter. Of course, I recommend that you do not buy this, as it will leave you in a pickle some day when you need water. If you buy it anyway, please carry iodine tablets (as you should with ANY filter), or have some other backup water source—you'll need it.
Date published: 2010-04-16
Rated 2 out of 5 by from Broken on first use Initially, I was very impressed with the simplicity of this filter (and price). As I went to break everything down and put it back in the pack, I noticed a plastic nipple in the end of the hose I had just disconnected - it was the nipple for the inlet and it had broken off the filter upon removing the hose, rendering the filter useless. Fortunately, this was a "trial run" a week before a long hike, but if I had been in the backcountry, this would have been a major problem. I expect that REI will exchange it and I will definitely use extreme caution from here on, but I'll also always carry a backup method of purification.
Date published: 2010-01-10
Rated 4 out of 5 by from Proved itself worthy in the feild I use this product on multi-day backpacking trips on the Appalacian trail, for myself and my two sons.On these same trips a freind had the MSR brand filter.For the amount of exertion needed, the Katadin hiker produced more water and was physically easier to use than the MSR. My freind borrowed the Katin hiker and the next week he bought the Katadin hiker.I also found the Katadin easy to disassemble and clean. The reason my freind bought the MSR is that he was told the replacement O-rings can be found at any hardware store,where as the Katadins parts arent standard size. Although Im not sure that this is true or not.
Date published: 2007-09-17
Rated 1 out of 5 by from Breaks easily This pump works reasonably well while it lasts. However, this last summer I have seen 4 of them fail on 3 separate trips in the exact same way - the plastic casing of the pump splits apart at the seam and the pump can no longer maintain adequate pressure. In one backcountry trip we brought 2 of these to be safe and they BOTH failed. So in summary this is a very lightweight pump that works reasonably well. Just don't take it anywhere where your life depends on it.
Date published: 2012-12-16
Rated 5 out of 5 by from Top of the Line After having tried many different filter systems, I will never buy another filter other than the Katadyn Hiker. Tired of slow output, quirky, cumbersome, heavy filter methods? I was too and this filter has proven to be better than I could have imagined. In a matter of minutes, I can fill all of my water containters and not be completely out of breath and drenched with sweat in the process. Convenient carrying case, easy to operate, simple to clean, long lasting filter... need I say more? Spend a few extra dollars, trash your garbage filter, and get the Hiker.
Date published: 2013-03-02
Rated 5 out of 5 by from Love it! I've had this for maybe 8 years or so. I use it on maybe 4 backpacking trips a year. It's always done a great job and I love it. It's light, small, and with the gallons and gallons of water I've drank through it, I've never gotten sick, so I imagine it's working quite well! I've never had to clean the filter or do any maintenance. I just let it air out to dry at the end of each trip. I think the only other thing I would want in a water filter is an automatic pump. The pumping gets a little tedious at times when filling up several bottles. I don't really know if that exists, or if it does, what it would cost or weigh, but bottom line is that compared to boiling water to sterilize it, and compared to drinking unfiltered water, I think this must be one of the best, lightweight options for filtering water out there.
Date published: 2014-07-14
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Questions & Answers

My water was brown and there were a couple of decent sized specks of dirt at the bottom of my bottle after pumping from a river that's brown due to silt and sand. Is this normal?

Asked by: LC_Rider
one thing that helps in dirty water is to wrap a paper coffee filter around the inlet to filter out the really large chunks
Answered by: Deek
Date published: 2017-07-18

What are the differences between the Katadyn Hiker Water Filter and the Katadyn Hiker Pro Water Filter?

Asked by: duck
They use the same filter system. The Hiker Pro has 30% more capacity, which makes it faster. It also has quick-release fittings, which means the output hose can attach directly to most hydration reservoirs. You will find it here: http://www.rei.com/product/830745/katadyn-hiker-pro-water-filter
Answered by: REIservice
Date published: 2017-03-16

What am I doing wrong with this pump.  The first 30 liters are GREAT and then the pumping gets harder and harder.  I have tried three of them and it is the same every time.  The water is crystal clear that I have been pumping.

Asked by: sunchipper
Cartridge capacity depends on water quality. The Katadyn Hiker was tested at 750 liters and found effective for removal of bacteria (Klebsiella terrigena) and protozoan cysts (Giardia and Cryptosporidium). For maximum performance, cartridge should be replaced after 750 liters or when the unit becomes hard to pump. Be sure to follow the instructions in the manual for cleaning after each trip. The manual can be downloaded off the Katadyn website.
Answered by: REIservice
Date published: 2017-07-18

Where can you buy replacement hoses for the Hiker Pro?

Asked by: Kevin317
Please consult the manufacturer's website for more information regarding replacement parts.
Answered by: REIservice
Date published: 2017-07-18

I have a Base Camp Water Microfilter (Back Country Series) that has never worked. I bought it from you several years ago, took it to the Quetico and it leaks around the threaded cap when tightened but not while loose. Help???

Asked by: Mac from Michigan
Please contact us at 1-800-426-4840 or contact the manufacturer directly for assistance with your water filter.
Answered by: REIservice
Date published: 2017-06-15

What is the replacement filter for this item (as opposed to the Pro model)?

Asked by: Jen84004
The Hiker Pro Element is the replacement filter for the regular Katadyn Hiker as well: http://www.rei.com/product/724044/katadyn-hiker-pro-element
Answered by: REIservice
Date published: 2017-07-12

Are the filters for this unit interchangeable with the similar looking old Pur filters??

Asked by: mtnbear
Replacement filters for this unit can be found here. https://www.rei.com/product/724044/katadyn-hikerhiker-probase-camp-replacement-element
Answered by: REIservice
Date published: 2017-07-18
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