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Details

  • Easy-to-use dry bag-style design provides safe, potable water for large groups, base camps and family camping trips
  • 6-liter water bag with roll-top and side-release buckle closure fills quickly and hangs easily; window on bag displays water level
  • Ultra Fast Flow Technology provides 2 liters per minute filtration; quick-release hoses connect easily to personal hydration bladders
  • Low maintenance, pleated glassfiber filter supplies fast water flow; cleanable filter protector extends filter life in challenging conditions
  • Filter physically removes silt, cysts, protozoa and bacteria down to 0.2 microns in size, including giardia, salmonella, cryptosporidia and others
  • Sediment trap eliminates backflushing hassles by trapping dirt before it enters the filter
  • Turn the filter's bladder into a camp shower with the Camp Series Shower Adaptor (sold separately)
  • Katadyn Gravity Camp 6L Water Filter includes field-cleaning supplies

Imported.

View all Katadyn Gravity Water Filters

REI membership

Specs

Best Use Camping
Filter Type Gravity
Filter Medium Pleated glassfiber/carbon core/filter protector
Removes/Destroys Protozoa and Bacteria
Pump Force Not applicable
Pump Strokes Per Liter Not applicable
Output 2 liters per minute
Housing Material (Waterbag) nylon
BPA Free Yes, Yes
Field Cleanable Yes
Dimensions (Filter) 4 x 6 / (hose) 48
Weight 12.4 ounces
Rated 4 out of 5 by from Easy and awesome I bought this several years ago but used it for the first time last year on two backpacking trips. I loved the ease of use and the great volume of water we had at our disposal at the campsite and before we hiked for the day. The only problem was a small leak that started in the bag. It was repaired with duct tape and did fine. We only used this with very clear water so sediment was not an issue.
Date published: 2014-07-20
Rated 5 out of 5 by from Life Saver!!! I bought the Katadyn Gravity Camp System to use on through hikes. I walked a portion of the Eagle Rock Loop in the Ouachita National Forest. I was able to quickly assemble and filter water as needed. Quite possibly the most important piece of gear in my bag. I highly recommend this system and kudos to the rep in San Antonio who recommended it.
Date published: 2016-05-09
Rated 4 out of 5 by from A lot of water for each day I have used this on several occasions. Including a weeklong AT section hike spring of 2015. I attached some carabineers at the end to make it easer to hang. Filters water fast. Found that it has plenty of water to cook with that night and refill the water bottles for next day. With enough left over to wash dishes, hands, and face. Would highly recommend
Date published: 2016-02-07
Rated 2 out of 5 by from poor design for backpacking I bought this with high expectations, having used KATADYN pumps in the past. I got it home, read the instructions, assembled it, disassembled it, put it back in the box, and promptly returned it. It has a major flaw in the design for my intended use (backpacking). The actual filter is soft sided; the instructions actually warn you not to grasp it by the side when installing. Any damage will render it unusable. The travel bag is soft as well. The is no way this filter could survive a week inside my pack without getting inadvertently crushed. Something as important to my health and safety as my water supply can not be at risk for failure. I love all the other features this product has, just wouldn't risk carrying as my only water supply.
Date published: 2016-06-17
Rated 5 out of 5 by from Great filter! This is a great filter. My wife and I have been using this for several months now and have yet to encounter any issues with it (I carefully follow the cleaning instructions after each trip). It packs up nicely and does a great job at filling up our pack reservoirs quickly. It's also nice to have water readily available when we take our dogs with us.
Date published: 2016-04-05
Rated 5 out of 5 by from Backpacking Luxury REI was out of stock on the platypus gravity filter so we went with this and boy am I glad! We use it for backpacking and it's like having our own backcountry hose with us. It makes drinking, dishes, brushing teeth, washing hands and face all super convenient compared to our old pump filter. Never going back. Love it recommend!
Date published: 2016-07-16
Rated 1 out of 5 by from This will clog no matter how much service it Conceptually this is a great product. Used out west with clear streams, it works great. Used in Minnesota with any sediment at all (I am talking about seemingly clear lakes and streams) and it will clog after 2-3 bladders worth of water. Back flushing, soaking in clean water, etc - nothing will help you in the field. I have gone though multiple filters and am done with this product. Going to try Sawyer since it includes a tap attachment backflush system at least. Perhaps just a hand pump.
Date published: 2016-05-09
Rated 5 out of 5 by from It is awesome! I've used this twice. It is super easy to fill and set up. The flow rate is phenomenal. I love it!
Date published: 2015-09-20
Rated 3 out of 5 by from First use, bag broke on weld I was really looking forward to a long relationship with this filter system. I've had other Katadyn filters that have lasted decades. Unfortunately, the very first time I set this system up, the bag slipped while it was being hung and dropped about 3 feet. The weld joining the plastic window and the cloth bag split and that was that. Another reviewer mention that her system also developed a leak. I'm hoping that this isn't a recurrent issue as the system/filter is both simple and fast.
Date published: 2015-07-28
Rated 5 out of 5 by from Over a year of excellent use, zero problems I bought this for me and my family of 4, we have used it over the past year on dozens of hiking, backpacking and car camping trips, literally zero problems. follow the directions. some people are worried about crushing filter, I always pack my water treatment in the very top of my pack (the lid, the brains, etc) and I have never had a problem with it. just don't smash it down in the bottom of the pack or surround it with heavy bulky items and you should be fine. I absolutely love the zero pumping factor, we just fill it and clip it to a tree branch and it does the work. 5 stars for convenience, 5 stars durability. I back flush after every trip to clear out the sediment and have never had a clog. the water pouch itself is thick and durable as well.
Date published: 2017-03-26
Rated 4 out of 5 by from Great filter - maintenance tips I have used this filter for several years on wilderness rafting and hiking trips. I initially only used it for large groups, but I find it very handy for smaller groups as well. Set it up when you get to camp and the water filters while you're setting up camp or just relaxing. Note that gravity filters are more sensitive to filter cleanliness than manual pump filters. Filters may look clean enough on the outside, but the filter pores clog up over time. Manual pumps can generate enough pressure to push water through filters that are a bit dirty. But gravity filters involve much less pressure and this pressure depends on the column of water in the bag above the filter (head pressure). How do you know if it’s clean enough? Look for a strong, steady flow out the tube. This is how it flows with a clean filter. If it’s dribbling, or the flow is weak or inconsistent, replace the filter. Can you clean the filter using effervescent (fizz) cleaning? Not enough for a gravity-based system. I experimented with effervescent tablets, hydrogen peroxide, and the ol' elementary school volcano approach (add baking soda to a vinegar solution) without much improvement. The best field fix is to fill the bag as full as possible. The increased head pressure increases the flow (until the water level drops enough). Then replace the filter when you can.
Date published: 2016-09-09
Rated 1 out of 5 by from Quit working after 2 days... The first day of use in the BWCA was great, filled our nalgene bottles lickity split but by day 3 it was nothing more than a trickle; 30-45 minutes to fill a 32oz bottle. We boiled water for the rest of the trip as that was much faster and eliminated any doubts. Ultimately this will be getting returned and I will be looking for an alternative.
Date published: 2015-08-19
Rated 4 out of 5 by from So much better than my pump-style filters This filter is about the same weight as my previous pump-style filter (which I still have but will probably never use now) but I found using it to be vastly preferable. Here's why: 1) Time - this thing averaged about 45 seconds per liter. This is at least twice as fast as any pump-style filter I've used. 2) Ease of use - scoop up some water or hold it under a flow to collect water, then just hang it and fill your container(s). One trick to this is that I really didn't want to dunk the bottom of the bag, where the hose connects, since that was unfiltered water. This wasn't a problem but something I had to be conscious of. 3) Carrying water - I've found it very convenient to fill this thing up and bring it back to the camp site to hang on a tree. Then I can just use it like a tap and get water on demand. Previously I have always carried extra water bladders to fill up. This saved space, time, and weight. 4) No pumping - this could probably go under ease of use but I really hate pumping the water filter. I like everything else about making the trip down to collect water, now I like everything. One gripe I have is that the carry strap is not that comfortable to carry but that is easily remedied. I have not used this enough times to know about some other comments that it loses flow after use. I have not seen that yet but I only used it 4 times so far.
Date published: 2016-08-24
Rated 4 out of 5 by from Awesome. Very happy with this purchase. A quick scoop from your nearby water source and you'll have loads of clean water for drinking, cooking, washing, etc. - it felt pretty luxurious compared to the usual routine of pumping! I also like that it can be hooked right into your Camelback hose, if you so desire. We found that the force of the water coming out of the hose was enough to quickly rinse camp dishes or quickly fill water bottles. Only disappointment is that it comes with a rather flimsy transport bag, which made me a little nervous after reading about how fragile the filter is. I clipped the whole thing to the outside of my backpack so it wouldn't get crushed. I guess the 10L bag comes with a shoulder strap - that would be nice, too! 6L is no fun to carry, and you really can't set the thing down once it's filled, lest you wreck the tap & filter. I got a cardio workout just from waddling between streams and camp (and fortunately had a tall enough buddy to hoist the thing onto accommodating tree limbs). PS - I bought this online and tried it out a couple nights before my trip. Glad I did, it was missing a critical part! The small grey tap which regulates flow wasn't there. I could get the water slowly working by manually pressing the tap part up and into the bag - I guess good to know should it ever break? Anyway, studying the pictures online made me realize the manufacturing error. REI took it back and traded me for a proper version.
Date published: 2016-07-19
Rated 5 out of 5 by from Filter Cartridge The new style filter cartridge does not fit the original base camp gravity bag filter system. You must continue to buy the $50 Hiker Pro.
Date published: 2015-04-01
Rated 5 out of 5 by from Easy, fast, and waters a group of hikers. I've used it on a few backpacking trips so far and really love it. It's light weight, and this style beats the heck out of sitting on the bank pumping. My most recent trip, 6 of us used it for 3 days. One of the guys that brought a pump, was jealous and tried to use it once. By the time he had filled on liter, the rest of us filtered the 6 the bag holds. It's great to just scoop water up and hang it at camp. I'd usually refill it before bed so I didn't have to worry about water for breakfast.
Date published: 2016-10-26
Rated 1 out of 5 by from Terrible filter Used it one time on the Gunnison. It will filter about 12 liters of water then that's it. The filter will be reduced to a trickle. What is worse is that the filter isn't really field cleanable. Great idea, bad product.
Date published: 2017-05-31
Rated 1 out of 5 by from Don't do it! Impressive till it wasn't. Clogged after only a few gallons - flow down to a trickle with no warning. Returned it for the Platypus.
Date published: 2016-01-09
Rated 1 out of 5 by from Avoid this product From what I can tell the filter is not serviceable. The filter will clog after about 6-8 liters (Gunnison River). This is a horrible product and will be returned.
Date published: 2015-11-18
Rated 5 out of 5 by from Great for family backpacking Recently purchased the Katadyn Gravity Camp 6L over Memorial Day Weekend as i wanted to start weening my kids off of car clamping, and get them out backpacking. The product works as advertised and after two, 3 day trips I'm still getting close to the 2L/minute flow rate Katadyn claims and i have yet to clean or backflush the filter once. It really makes it nice when you stop on the trail to rest and fill up water that dad doesn't have to spend 10 minutes pumping for the family. Just fill the bladder, hang from a tree branch or other elevated area and your in business. Two small issues that we've run into: 1) The buckle that the bladder uses to secure is non adjustable so it can make it a little challenging to find a branch that is small enough for it to fit around, and yet strong enough to hold the weight of 6L of water. Easy fix with some cordage and a carabiner to hang it from but it would be nice if the length of the straps were adjustable. 2) Since the hose is directly underneath the bladder you run the risk of breaking it if you set it down on end while its full. This can make it a little challenging to fold the top down and secure the buckle with the weight of 6L of water in it. I can do it by myself but my 10 year old doesn't have the strength to so it takes another set of hands to help support it while she secures the top. All in all though both those issues are pretty small IMO and this has been a great product for us so far (the family voted it MVP or our first backpacking trip).
Date published: 2016-06-12
Rated 1 out of 5 by from Incomplete Setup was incomplete ... missing a key piece rendering it unusable...hence, worthless...
Date published: 2017-07-08
Rated 5 out of 5 by from Katadyn gravity camp revolutionizes camp routine I've read most of the reviews on REI.com for the Katadyn filter and I'm shocked that people are having trouble with this product. I'm writing in October 2016 to defend and applaud this fantastic product which was purchased one and a half years ago. We have used the 6 L model on many multi-day Pack trips (up to 9 uninterrupted days in the Sangre de Cristo Range and shorter trips throughout Colorado's mountain ranges). Simply put: it has revolutionized our camp routine. No longer do we have to fight mosquitoes at the water source while agonizingly pumping a filter that seems to decline in efficiency on each use. No longer do we have to squat on a rock by the creekside, struggling to keep the filtered bottle from falling into the water while pumping. From a Leave No Trace perspective, taking care of filtration away from the delicate water's edge and not trampling the vegetation is a definite improvement from pumping. We simply fill up the bag, bring it back to camp, plug it into the Camelbak, and wait for it to fill to capacity. It fills so full that it looks like a swollen tick. The construction of the bag is adequate for the intended use. It's a good balance of durability and lightweight material. The clear window allows me to see how much water is left even from a distance. The solid strap and buckle on top allows me to carry the heavy bag back to camp without trouble. To address some of the other concerns I read about here: prevent the filled bag from falling onto the ground, don't crush the filter by jamming it carelessly into a backpack, fill the bag with water that doesn't have a lot of sediment or use a cook pot first to allow excessive sediment to settle. If this item is cared for like any other expensive piece of backpacking equipment it seems to last a long time. Nice job, Katadyn. The gravity camp 6 L water filter was worth the wait. -DES, 10/20/16
Date published: 2016-10-20
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Can this unit readily be hung in (or on) a backpack and used while hiking? Tips for doing so?  Thank you!

Asked by: Rob7
​Yes, this filter can be hung on backpack to filter water while hiking.
Answered by: REIservice
Date published: 2017-05-04

I already own the Hiker Pro. Does Katadyn have a variant of this product without the actual filter?

Asked by: natec
Unfortunately, we do not stock this item without the filter. We recommend contacting the Katadyn directly for additional information.
Answered by: REIservice
Date published: 2017-04-24

I can't find replacement filters anywhere online or in store -- are they available?

Asked by: MikeCB
The base camp uses the field cleanable Hiker PRO cartridge. This can be ordered from Katadyn: http://shop.katadyn.com/product/8014644?catalog_id=1&language_id=1
Answered by: REIservice
Date published: 2017-04-01

I'm wondering why REI identifies the Katadyne's Water Filter System best use as "camping" and not "backpacking?" Is there a particular reason?

Asked by: rtheyden
Large capacity gravity filter systems are often aimed toward larger groups of campers due to the higher output. This filter can be used for smaller groups and solo backpacking as well.
Answered by: REIservice
Date published: 2017-05-24

How do you know when to replace the filter? Will it automatically stop flowing when it needs to be replaced?

Asked by: Irclavel
To keep the filter cartridge performing at a high level, it should be replaced after 1500L or 400 gallons or if water flow has stopped.
Answered by: REIservice
Date published: 2017-06-30

About how many gallon can you run through before needing to replace the filter? Does it clog up easily or for a while?

Asked by: Peter from Provo
If the water is generally clear, the filter should clean up to 1,500 gallons. If the filter does clog up, this filter is easy to clean. The clearer the water, the less chance of any clogging problems.
Answered by: REIservice
Date published: 2017-04-01
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Reviews

Rated 4 out of 5 by from Easy and awesome I bought this several years ago but used it for the first time last year on two backpacking trips. I loved the ease of use and the great volume of water we had at our disposal at the campsite and before we hiked for the day. The only problem was a small leak that started in the bag. It was repaired with duct tape and did fine. We only used this with very clear water so sediment was not an issue.
Date published: 2014-07-20
Rated 5 out of 5 by from Life Saver!!! I bought the Katadyn Gravity Camp System to use on through hikes. I walked a portion of the Eagle Rock Loop in the Ouachita National Forest. I was able to quickly assemble and filter water as needed. Quite possibly the most important piece of gear in my bag. I highly recommend this system and kudos to the rep in San Antonio who recommended it.
Date published: 2016-05-09
Rated 4 out of 5 by from A lot of water for each day I have used this on several occasions. Including a weeklong AT section hike spring of 2015. I attached some carabineers at the end to make it easer to hang. Filters water fast. Found that it has plenty of water to cook with that night and refill the water bottles for next day. With enough left over to wash dishes, hands, and face. Would highly recommend
Date published: 2016-02-07
Rated 2 out of 5 by from poor design for backpacking I bought this with high expectations, having used KATADYN pumps in the past. I got it home, read the instructions, assembled it, disassembled it, put it back in the box, and promptly returned it. It has a major flaw in the design for my intended use (backpacking). The actual filter is soft sided; the instructions actually warn you not to grasp it by the side when installing. Any damage will render it unusable. The travel bag is soft as well. The is no way this filter could survive a week inside my pack without getting inadvertently crushed. Something as important to my health and safety as my water supply can not be at risk for failure. I love all the other features this product has, just wouldn't risk carrying as my only water supply.
Date published: 2016-06-17
Rated 5 out of 5 by from Great filter! This is a great filter. My wife and I have been using this for several months now and have yet to encounter any issues with it (I carefully follow the cleaning instructions after each trip). It packs up nicely and does a great job at filling up our pack reservoirs quickly. It's also nice to have water readily available when we take our dogs with us.
Date published: 2016-04-05
Rated 5 out of 5 by from Backpacking Luxury REI was out of stock on the platypus gravity filter so we went with this and boy am I glad! We use it for backpacking and it's like having our own backcountry hose with us. It makes drinking, dishes, brushing teeth, washing hands and face all super convenient compared to our old pump filter. Never going back. Love it recommend!
Date published: 2016-07-16
Rated 1 out of 5 by from This will clog no matter how much service it Conceptually this is a great product. Used out west with clear streams, it works great. Used in Minnesota with any sediment at all (I am talking about seemingly clear lakes and streams) and it will clog after 2-3 bladders worth of water. Back flushing, soaking in clean water, etc - nothing will help you in the field. I have gone though multiple filters and am done with this product. Going to try Sawyer since it includes a tap attachment backflush system at least. Perhaps just a hand pump.
Date published: 2016-05-09
Rated 5 out of 5 by from It is awesome! I've used this twice. It is super easy to fill and set up. The flow rate is phenomenal. I love it!
Date published: 2015-09-20
Rated 3 out of 5 by from First use, bag broke on weld I was really looking forward to a long relationship with this filter system. I've had other Katadyn filters that have lasted decades. Unfortunately, the very first time I set this system up, the bag slipped while it was being hung and dropped about 3 feet. The weld joining the plastic window and the cloth bag split and that was that. Another reviewer mention that her system also developed a leak. I'm hoping that this isn't a recurrent issue as the system/filter is both simple and fast.
Date published: 2015-07-28
Rated 5 out of 5 by from Over a year of excellent use, zero problems I bought this for me and my family of 4, we have used it over the past year on dozens of hiking, backpacking and car camping trips, literally zero problems. follow the directions. some people are worried about crushing filter, I always pack my water treatment in the very top of my pack (the lid, the brains, etc) and I have never had a problem with it. just don't smash it down in the bottom of the pack or surround it with heavy bulky items and you should be fine. I absolutely love the zero pumping factor, we just fill it and clip it to a tree branch and it does the work. 5 stars for convenience, 5 stars durability. I back flush after every trip to clear out the sediment and have never had a clog. the water pouch itself is thick and durable as well.
Date published: 2017-03-26
Rated 4 out of 5 by from Great filter - maintenance tips I have used this filter for several years on wilderness rafting and hiking trips. I initially only used it for large groups, but I find it very handy for smaller groups as well. Set it up when you get to camp and the water filters while you're setting up camp or just relaxing. Note that gravity filters are more sensitive to filter cleanliness than manual pump filters. Filters may look clean enough on the outside, but the filter pores clog up over time. Manual pumps can generate enough pressure to push water through filters that are a bit dirty. But gravity filters involve much less pressure and this pressure depends on the column of water in the bag above the filter (head pressure). How do you know if it’s clean enough? Look for a strong, steady flow out the tube. This is how it flows with a clean filter. If it’s dribbling, or the flow is weak or inconsistent, replace the filter. Can you clean the filter using effervescent (fizz) cleaning? Not enough for a gravity-based system. I experimented with effervescent tablets, hydrogen peroxide, and the ol' elementary school volcano approach (add baking soda to a vinegar solution) without much improvement. The best field fix is to fill the bag as full as possible. The increased head pressure increases the flow (until the water level drops enough). Then replace the filter when you can.
Date published: 2016-09-09
Rated 1 out of 5 by from Quit working after 2 days... The first day of use in the BWCA was great, filled our nalgene bottles lickity split but by day 3 it was nothing more than a trickle; 30-45 minutes to fill a 32oz bottle. We boiled water for the rest of the trip as that was much faster and eliminated any doubts. Ultimately this will be getting returned and I will be looking for an alternative.
Date published: 2015-08-19
Rated 4 out of 5 by from So much better than my pump-style filters This filter is about the same weight as my previous pump-style filter (which I still have but will probably never use now) but I found using it to be vastly preferable. Here's why: 1) Time - this thing averaged about 45 seconds per liter. This is at least twice as fast as any pump-style filter I've used. 2) Ease of use - scoop up some water or hold it under a flow to collect water, then just hang it and fill your container(s). One trick to this is that I really didn't want to dunk the bottom of the bag, where the hose connects, since that was unfiltered water. This wasn't a problem but something I had to be conscious of. 3) Carrying water - I've found it very convenient to fill this thing up and bring it back to the camp site to hang on a tree. Then I can just use it like a tap and get water on demand. Previously I have always carried extra water bladders to fill up. This saved space, time, and weight. 4) No pumping - this could probably go under ease of use but I really hate pumping the water filter. I like everything else about making the trip down to collect water, now I like everything. One gripe I have is that the carry strap is not that comfortable to carry but that is easily remedied. I have not used this enough times to know about some other comments that it loses flow after use. I have not seen that yet but I only used it 4 times so far.
Date published: 2016-08-24
Rated 4 out of 5 by from Awesome. Very happy with this purchase. A quick scoop from your nearby water source and you'll have loads of clean water for drinking, cooking, washing, etc. - it felt pretty luxurious compared to the usual routine of pumping! I also like that it can be hooked right into your Camelback hose, if you so desire. We found that the force of the water coming out of the hose was enough to quickly rinse camp dishes or quickly fill water bottles. Only disappointment is that it comes with a rather flimsy transport bag, which made me a little nervous after reading about how fragile the filter is. I clipped the whole thing to the outside of my backpack so it wouldn't get crushed. I guess the 10L bag comes with a shoulder strap - that would be nice, too! 6L is no fun to carry, and you really can't set the thing down once it's filled, lest you wreck the tap & filter. I got a cardio workout just from waddling between streams and camp (and fortunately had a tall enough buddy to hoist the thing onto accommodating tree limbs). PS - I bought this online and tried it out a couple nights before my trip. Glad I did, it was missing a critical part! The small grey tap which regulates flow wasn't there. I could get the water slowly working by manually pressing the tap part up and into the bag - I guess good to know should it ever break? Anyway, studying the pictures online made me realize the manufacturing error. REI took it back and traded me for a proper version.
Date published: 2016-07-19
Rated 5 out of 5 by from Filter Cartridge The new style filter cartridge does not fit the original base camp gravity bag filter system. You must continue to buy the $50 Hiker Pro.
Date published: 2015-04-01
Rated 5 out of 5 by from Easy, fast, and waters a group of hikers. I've used it on a few backpacking trips so far and really love it. It's light weight, and this style beats the heck out of sitting on the bank pumping. My most recent trip, 6 of us used it for 3 days. One of the guys that brought a pump, was jealous and tried to use it once. By the time he had filled on liter, the rest of us filtered the 6 the bag holds. It's great to just scoop water up and hang it at camp. I'd usually refill it before bed so I didn't have to worry about water for breakfast.
Date published: 2016-10-26
Rated 1 out of 5 by from Terrible filter Used it one time on the Gunnison. It will filter about 12 liters of water then that's it. The filter will be reduced to a trickle. What is worse is that the filter isn't really field cleanable. Great idea, bad product.
Date published: 2017-05-31
Rated 1 out of 5 by from Don't do it! Impressive till it wasn't. Clogged after only a few gallons - flow down to a trickle with no warning. Returned it for the Platypus.
Date published: 2016-01-09
Rated 1 out of 5 by from Avoid this product From what I can tell the filter is not serviceable. The filter will clog after about 6-8 liters (Gunnison River). This is a horrible product and will be returned.
Date published: 2015-11-18
Rated 5 out of 5 by from Great for family backpacking Recently purchased the Katadyn Gravity Camp 6L over Memorial Day Weekend as i wanted to start weening my kids off of car clamping, and get them out backpacking. The product works as advertised and after two, 3 day trips I'm still getting close to the 2L/minute flow rate Katadyn claims and i have yet to clean or backflush the filter once. It really makes it nice when you stop on the trail to rest and fill up water that dad doesn't have to spend 10 minutes pumping for the family. Just fill the bladder, hang from a tree branch or other elevated area and your in business. Two small issues that we've run into: 1) The buckle that the bladder uses to secure is non adjustable so it can make it a little challenging to find a branch that is small enough for it to fit around, and yet strong enough to hold the weight of 6L of water. Easy fix with some cordage and a carabiner to hang it from but it would be nice if the length of the straps were adjustable. 2) Since the hose is directly underneath the bladder you run the risk of breaking it if you set it down on end while its full. This can make it a little challenging to fold the top down and secure the buckle with the weight of 6L of water in it. I can do it by myself but my 10 year old doesn't have the strength to so it takes another set of hands to help support it while she secures the top. All in all though both those issues are pretty small IMO and this has been a great product for us so far (the family voted it MVP or our first backpacking trip).
Date published: 2016-06-12
Rated 1 out of 5 by from Incomplete Setup was incomplete ... missing a key piece rendering it unusable...hence, worthless...
Date published: 2017-07-08
Rated 5 out of 5 by from Katadyn gravity camp revolutionizes camp routine I've read most of the reviews on REI.com for the Katadyn filter and I'm shocked that people are having trouble with this product. I'm writing in October 2016 to defend and applaud this fantastic product which was purchased one and a half years ago. We have used the 6 L model on many multi-day Pack trips (up to 9 uninterrupted days in the Sangre de Cristo Range and shorter trips throughout Colorado's mountain ranges). Simply put: it has revolutionized our camp routine. No longer do we have to fight mosquitoes at the water source while agonizingly pumping a filter that seems to decline in efficiency on each use. No longer do we have to squat on a rock by the creekside, struggling to keep the filtered bottle from falling into the water while pumping. From a Leave No Trace perspective, taking care of filtration away from the delicate water's edge and not trampling the vegetation is a definite improvement from pumping. We simply fill up the bag, bring it back to camp, plug it into the Camelbak, and wait for it to fill to capacity. It fills so full that it looks like a swollen tick. The construction of the bag is adequate for the intended use. It's a good balance of durability and lightweight material. The clear window allows me to see how much water is left even from a distance. The solid strap and buckle on top allows me to carry the heavy bag back to camp without trouble. To address some of the other concerns I read about here: prevent the filled bag from falling onto the ground, don't crush the filter by jamming it carelessly into a backpack, fill the bag with water that doesn't have a lot of sediment or use a cook pot first to allow excessive sediment to settle. If this item is cared for like any other expensive piece of backpacking equipment it seems to last a long time. Nice job, Katadyn. The gravity camp 6 L water filter was worth the wait. -DES, 10/20/16
Date published: 2016-10-20
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Questions & Answers

Can this unit readily be hung in (or on) a backpack and used while hiking? Tips for doing so?  Thank you!

Asked by: Rob7
​Yes, this filter can be hung on backpack to filter water while hiking.
Answered by: REIservice
Date published: 2017-05-04

I already own the Hiker Pro. Does Katadyn have a variant of this product without the actual filter?

Asked by: natec
Unfortunately, we do not stock this item without the filter. We recommend contacting the Katadyn directly for additional information.
Answered by: REIservice
Date published: 2017-04-24

I can't find replacement filters anywhere online or in store -- are they available?

Asked by: MikeCB
The base camp uses the field cleanable Hiker PRO cartridge. This can be ordered from Katadyn: http://shop.katadyn.com/product/8014644?catalog_id=1&language_id=1
Answered by: REIservice
Date published: 2017-04-01

I'm wondering why REI identifies the Katadyne's Water Filter System best use as "camping" and not "backpacking?" Is there a particular reason?

Asked by: rtheyden
Large capacity gravity filter systems are often aimed toward larger groups of campers due to the higher output. This filter can be used for smaller groups and solo backpacking as well.
Answered by: REIservice
Date published: 2017-05-24

How do you know when to replace the filter? Will it automatically stop flowing when it needs to be replaced?

Asked by: Irclavel
To keep the filter cartridge performing at a high level, it should be replaced after 1500L or 400 gallons or if water flow has stopped.
Answered by: REIservice
Date published: 2017-06-30

About how many gallon can you run through before needing to replace the filter? Does it clog up easily or for a while?

Asked by: Peter from Provo
If the water is generally clear, the filter should clean up to 1,500 gallons. If the filter does clog up, this filter is easy to clean. The clearer the water, the less chance of any clogging problems.
Answered by: REIservice
Date published: 2017-04-01
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