- Online: www.REI.com
- URL for this product:
- From the U.S. and Canada — Call 1-800-426-4840
- Mon. through Sun., 4 a.m. through 11 p.m. PT.
- International — Call 1-253-891-2500
- Mon. through Sun., 4 a.m. through 11 p.m. PT. English language only.
Katadyn Exstream XR Purifier Water Bottle - 27 fl. oz.
$49.95
Item qualifies for annual
REI Member Refund (typically 10%)
This Katadyn purifier's large, liter-sized reservoir gives thirsty adventurers purified water by just squeezing the bottle.
- Tainted water within the bottle flows through three purifying stages by squeezing the soft plastic bottle
- First-stage filter removes large sediment and disagreeable odors
- Second-stage cyst filter traps protozoa in a web of glass fiber
- Third-stage ViruStat microbial cartridge kills bacteria and deactivates viruses with iodinated resin
- Liter size fits neatly in the pocket of your pack; spout snaps shut for dripless transportation
- Polyethylene is 100% BPA free
Made in USA.
Item 708980
Related Items:
Katadyn Exstream XR Purifier Water Bottle - 27 fl. oz. Specs
Specification | Description |
| Weight | 8 ounces |
| Dimensions | 3.5 x 3.5 x 12 inches |
| Material | Glass-fiber/iodinated resin/coconut carbon |
| Housing material | Polyethylene |
| Removes/Destroys | Protozoa, bacteria and viruses |
| Output | 0.3 liters per minute |
| Pump force | Not applicable |
| Pump strokes per liter | Not applicable |
| Field cleanable | No, must change cartridge |
Katadyn Exstream XR Purifier Water Bottle - 27 fl. oz. Customer Reviews
REVIEW SNAPSHOT®
by PowerReviewsPros
- Good filtration (20)
- Lightweight (19)
- Maintenance (19)
- Easy to clean (15)
- Easy to pump (11)
Cons
- Hard to pump (5)
- Filtered water doesn't taste good (3)
Best Uses
- Backpacking (20)
- Hiking (20)
- Day trip (10)
- Car camping (6)
- Reviewer Profile:
- Avid adventurer (13), Casual adventurer (13)
Reviewed by 25 customers
Sort by
Pros
- Easy to pump
- Good filtration
- Lightweight
- Low maintenance
Cons
Best Uses
- Backpacking
- Car Camping
- Day trip
- Hiking
Comments about Katadyn Exstream XR Purifier Water Bottle:
This is a great water filter for use anywhere. We used it for 3 weeks traveling around Viet Nam & Hong Kong, as well as prvious trips to Costa Rica & Mexico and have never gotten sick. It's easy to use and reliable. I've never tasted any iodine taste. We use it primarily in our hotel room and purchase bottled water when we're out and about. It's so convenient, esp on arrival when you haven't quite got your feet on the ground to figure out where to buy water, or it's late at night and all you want to do is brush your teeth. It takes a little pressure to get the water through the filters but it's not difficult. If backpacking I wouldn't rely on this as the primary source of water due to low flow, i.e. it would be difficult to fill up a pot of water.
- Gift:
- No
Pros
- Good filtration
- Lightweight
- Low maintenance
Cons
- Hard to pump
Best Uses
- Backpacking
- Hiking
- Travel
Comments about Katadyn Exstream XR Purifier Water Bottle:
I bought this filter bottle for a backpack trip through Chile. Travelling through mostly rural areas off the beaten path, I always had it with me in case the local water source was questionable. I also used it on a few hikes in the Parques Nacionales with water from lakes and streams. In my 9 weeks of travel I never got sick, not even a case of "traveler's diarrhea." The bottle was super handy, lightweight, and easy to carry around. The only drawback is that the flow of water comes out pretty slow when you squeeze so you can't exactly chug a refreshing bottle of water when your really thirsty.
- Gift:
- No
Pros
- Easy to clean
- Easy to pump
- Good filtration
- Lightweight
- Low maintenance
Cons
Best Uses
- Backpacking
- Fly Fishing
- Hiking
Comments about Katadyn Exstream XR Purifier Water Bottle:
I just got and used my bottle for the first time. Used it for a 3 day fishing trip. I usually keep a camelback on my back when fly fishing for longer than a couple of hours. The first day I took the camelback and the Katadyn, but the second and third I left the camelback behind,l and I love the lack of extra gear and weight!
I read a negative review here, and I have to wonder whether the person that said they couldn't prime it forgot to take the seal off the top of the Virastat portion of the filter as stated in the directions. I had absolutely no problem priming those first two bottles in mine, but i can see what might happen if you didn't follow directions.
I love this bottle!
Pros
- Easy to clean
- Good filtration
- Lightweight
- Low maintenance
Cons
- Filtered water doesn't taste good
- Hard to pump
Best Uses
- Backpacking
- Traveling Overseas
Comments about Katadyn Exstream XR Purifier Water Bottle:
A great filter for traveling!
I'm writing this review, sitting at the airport on my way home from Central America, a place where one has to be wary of the water you drink to be sure! This is my second trip with my Katadyn filter and stayed "regular" and healthy both times!
Beauty is you can fill it up anywhere, and its great for the airports too! As soon as you're through baggage check, fond the nearest water, whether it be fountain or even a sink, and you're hydrated and good to go again!
Cheap product for its ease and usefulness!
It's a bit hard to pump the water out without sucking on the spout, so don't plan on using it as your main filtration devise! Also run about 6 bottles of water through a new filter, despite the recommended 2, to remove the worst of the iodine taste!
Pros
- Easy to clean
- Good filtration
- Lightweight
- Low maintenance
Cons
Best Uses
- Backpacking
Comments about Katadyn Exstream XR Purifier Water Bottle:
This is a great waterbottle, though it is a little hard to get the water out if you want it fast. It also leaves a bit of iodine in your mouth but that was the second time, maybe it will wear off?
- Gift:
- No
Pros
- Easy to pump
- Easy to Use
- Good filtration
- Low maintenance
Cons
- Non-argonomic hold
Best Uses
- Airport travels
- Backpacking
- Car Camping
- Day trip
- Hiking
- International travels
Comments about Katadyn Exstream XR Purifier Water Bottle:
Have used it for our trips to Grant Teton hiking and YellowStone hiking. Was a life saver on our long Grand Teton hike, was able to dip into spring and drink cold water immediately. After first two refills, water tasted good and so long that you do not suck on it, will not even taste iodine. Also, when I did not run the bottle completely run out of water, after refill there was not problem at all to pump it right away.
Definitely a purchase for years to come. Now I always keep it in my car and have water anytime anywhere.
Pros
- Easy to pump
- Good filtration
- Lightweight
- Low maintenance
Cons
Best Uses
- Backpacking
- Day trip
- Hiking
Comments about Katadyn Exstream XR Purifier Water Bottle:
When you get past the priming process, it really doesn't get much better than this. It filters bacteria and virii, is incredibly simple, has a good capacity, and is easily serviceable.
The priming process simply involves a lot of squeezing, which can get old. Instead of filling it up and squeezing a whole bottle through the filter, i'd squeeze about half out and refill it.
Since then it's worked great. water tastes great. it's pretty great overall.
Pros
- Easy to clean
- Easy to pump
- Good filtration
- Lightweight
- Low maintenance
Cons
Best Uses
- Backpacking
- Car Camping
- Day trip
- Hiking
Comments about Katadyn Exstream XR Purifier Water Bottle:
I used this on a recent 24 mile overnight hike in Myakka River State Park in Florida. I read the directions for once so I knew what to expect. I found the priming process to be straightforward, and the flow rate, although not stunning, is adequate. I used it to fill my large Platypus reservoir in about 15-20 minutes (just a camp chore). Considering how bad the water looked and smelled pre-filtering, I had no complaints with the post-filtered taste. And I didn't die, so it must work!
Pros
- Easy to clean
- Lightweight
- Low maintenance
Cons
- very low output
Best Uses
- Backpacking
- Day trip
- Hiking
Comments about Katadyn Exstream XR Purifier Water Bottle:
I've owned a cheaper filtration bottle for several years, and really liked it. I decided to upgrade to a Katadyne, but was disappointed. I like the modular design, and the fact that it can be used with or without the filter. But I tried using it without the filter, and the output was barely more than a trickle. I didn't even try it with the filter in place, but I imagine it's much worse. Maybe I just had a defective bottle.
Pros
- Easy to pump
- Good filtration
- Lightweight
- Low maintenance
Cons
Best Uses
Comments about Katadyn Exstream XR Purifier Water Bottle:
A friend in Iraq suggested I try this as he used one over there with great success. I needed something between a steripen and a full on pumping type filter for use in backcountry hunting and scouting trips. I actually got it half price on clearance at REI and it would have been worth full price. Very simple to use and since I hunt where there is water, I don't have to worry about rationing or carrying in my own water. Pump was easy to prime, easy to use and tasted great after dumping first two bottles full. I am usually wary about iodine based purifiers as I am slightly allergic, but no problems and I have not been sickened even by filling bottle from barely flowing scary looking water holes!
Katadyn Exstream XR Purifier Water Bottle - 27 fl. oz. Related Items
Things you might need for this item:
Join REI and Enjoy the Benefits
Members are eligible for an annual refund
on qualifying purchases. Plus, they enjoy many
more benefits. Get a lifetime membership for $20.
How are we doing? Give us feedback on this page.
Shopping Cart - |
- Log In or Register
- Store Locator
- |
- Email Sign-Up
- |
- 1-800-426-4840
-
Camping & Hiking
- Gear
- Air Mattresses
- Backpacks
- Bivy Sacks
- Camp Furniture
- Sleeping Bags
- Sleeping Pads
- Tents
- Water Bottles
- Water Treatment
- All Camp/Hike Gear
- Gadgets and Electronics
- Binoculars
- Compasses
- Flashlights
- GPS
- Headlamps
- Knives
- Lanterns
- Camp Tools
- Radios
- All Gadgets and Electronics
- Camp Kitchen
- Coffee
- Containers
- Cookware
- Coolers
- Dishes and Utensils
- Food
- Stoves
- Tables
- All Camp Kitchen
-
Climbing
- Climbing Gear
- Aid Gear
- Ascenders
- Belay/Rappel
- Carabiners
- Climbing Chalk
- Climbing Harnesses
- Climbing Helmets
- Climbing Holds
- Climbing Packs
- Crash Pads
- Rock Protection
- Pulleys
- Quickdraws
- Rock Climbing Shoes
- Ropes
- Caving and Canyoneering
- Webbing and Cord
- Slings and Runners
- All Climbing Gear
-
Cycling
- Bikes
- Cruiser Bikes
- Comfort Bikes
- Folding Bikes
- Kids' Bikes
- Hybrid Bikes
- Mountain Bikes
- Road Bikes
- Urban Bikes
- All Bikes
- Clothing/Helmets
- Cycling Gloves
- Cycling Helmets
- Cycling Jackets
- Cycling Jerseys
- Cycling Shoes
- Cycling Shorts
- Cycling Socks
- Cycling Tights & Pants
- Arm/Leg Warmers
- All Cycling Clothes
-
Fitness
- Fitness Clothing
- Men's Running Clothing
- Men's Swimming
- Men's Triathlon Clothing
- Women's Running Clothing
- Women's Swimming
- Women's Triathlon Clothes
- Women's Yoga Clothing
- All Fitness Clothing
- Fitness Footwear
- Men's Cross-Training Shoes
- Men's Road-Running Shoes
- Men's Trail Running Shoes
- Women's Cross-Training Shoes
- Women's Road-Running Shoes
- Women's Trail Running Shoes
- All Fitness Footwear
-
Paddling
- Kayaking
- Kayaks
- Kayak Accessories
- Kayak Carts
- Kayak Paddles
- Safety Equipment
- Spray Skirts
- All Kayaking Gear
- Canoeing
- Canoes
- Canoe Accessories
- Canoe Carts
- Canoe Paddles
- Canoe Yokes
- Canoe Flotation
- All Canoeing Gear
- Clothing and PFDs
- Dry Suits and Tops
- Paddling Gloves
- PFDs
- Rashguards
- Spray Wear
- Wet Suits
- All Paddling Clothing
-
Snowsports
- Alpine Skiing
- Alpine Skis
- Alpine Ski Bindings
- Alpine Ski Boots
- Ski Bags
- Ski Goggles
- Ski Helmets
- Ski Packs
- Alpine Ski Poles
- Men's Alpine Ski Clothing
- Women's Alpine Ski Clothing
- Gloves, Hats and Socks
- All Alpine Skiing
- XC and Backcountry
- Cross-Country Skiing
- Backcountry Skiing
- Nordic Touring
- Metal-Edge Touring
- Race/Performance Skiing
- Cross-Country Ski Tuning
- Cross-Country Ski Waxes
- Men's XC Clothing
- Women's XC Clothing
- Kids' XC Ski Gear
- All Cross-Country
- All Tele/Randonee
-
Travel
- Luggage
- Carry-On Luggage
- Travel Packs
- Wheeled Backpacks
- Wheeled Duffels
- Wheeled Luggage
- Bike Travel Cases
- Ski Bags
- All Luggage
- Day Bags
- Camera Bags
- Daypacks
- Duffel Bags
- Handbags
- Laptop Bags
- Messenger Bags
- Shoulder Bags
- Travel Totes
- All Day Bags
-
Men's
- Men's Jackets
- Casual Jackets
- Down Jackets
- Fleece Jackets
- Insulated Jackets
- Rain Jackets
- Running Jackets
- Wind Shells
- Ski Jackets
- Snowboard Jackets
- Soft Shell Jackets
- All Men's Jackets
- Men's Clothing
- Pants
- Shirts
- Shorts
- Sweaters
- Swimming
- Underwear
- Vests
- Footwear
- Tall Clothing
- All Men's Clothing
- Men's Accessories
- Balaclavas
- Bandanas
- Belts
- Gaiters
- Gloves and Mittens
- Hats
- Headwear
- Socks
- Sunglasses
- Watches
- All Accessories
-
Women's
- Women's Jackets
- Casual Jackets
- Down Jackets
- Fleece Jackets
- Insulated Jackets
- Rain Jackets
- Running Jackets
- Wind Shells
- Ski Jackets
- Snowboard Jackets
- Soft Shell Jackets
- All Women's Jackets
- Women's Clothing
- Footwear
- Pants
- Shirts
- Shorts
- Skirts and Dresses
- Sleepwear
- Sweaters
- Swimming
- Underwear
- Vests
- Petite Clothing
- Plus Sizes
- All Women's Clothing
- Women's Accessories
- Belts
- Gaiters
- Gloves and Mittens
- Hats
- Headwear
- Jewelry
- Scarves
- Socks
- Sports Bras
- Sunglasses
- Watches
- All Accessories
-
Kids'
- Kids' Shops
- Kids' Winter Outfits
- Boys' Clothing
- Girls' Clothing
- Infant & Toddler Clothing
- Kids' Outerwear
- Kids' Shoes
- Kids' Ski Clothing
- Kids' Snowboard Clothing
- Eco-Conscious
- All Kids'
-
Shoes & Boots
- Men's Footwear
- Men's Boots
- Men's Extended Sizes
- Men's Sandals
- Men's Shoes
- Men's Slippers
- Men's Socks
- Women's Footwear
- Women's Boots
- Women's Extended Sizes
- Women's Sandals
- Women's Shoes
- Women's Slippers
- Women's Socks
- Kids' Footwear
- Kids' Boots
- Kids' Sandals
- Kids' Shoes
- Kids' Slippers
- Kids' Socks
- Footwear Accessories
- Gaiters
- Insoles
- Laces
- Treatments
- Winter Traction
- Footwear Gifts
- Footwear Sale and Clearance
- All Footwear
- Brands
-
All Categories
- Alpine Skiing Shop
- Backcountry Skiing Shop
- Backpacks
- Binoculars
- Bikes
- Books and Maps
- Camping and Hiking
- Car Racks
- Climbing
- Cross-Country Skiing
- Cycling
- Dog Gear
- Electronics
- Fitness
- Gift Cards
- Gift Center
- GPS
- Hammocks
- Jackets
- Kids'
- Luggage and Day Bags
- REI Gift Cards
- Fast, easy and one size fits all.
- Buy now!
- REI Membership
- REI member benefits include an annual refund (typically 10% on eligible purchases).
- Join REI today!
- Sign up for REI Gearmail®
- and get 15% off selected items!
- Store Locator
- Locate an REI store near you.
- Company Info
- About REI
- Jobs at REI
- 100% Satisfaction Guarantee
- Corporate & Group Sales
- Privacy Policy
- Terms of Use
- Request an REI Catalog
- REI Membership
- Become an REI Member
- Member Help
- Apply for an REI Visa® Card
- We Care
- REI Gives
- Stewardship
- Volunteer
- Eco-Conscious Gear
- Expert Outdoor Advice
- Expert Advice Articles
- Outdoor Videos
- REI Outdoor School
- Store Events
- Online Affiliate Program
- Become an REI Affiliate
- Help
- Help Section
- Contact Us
- Live Help
- Order Tracking
- Returns and Exchanges
- Shipping Info
- 1-800-426-4840
- Product Safety Recalls
Find REI on:
Facebook 
Twitter 
YouTube 
MySpace 
Flickr