What are some popular brands for portable water filters at REI?

The top brands for portable water filters include: LifeStraw Katadyn Platypus HydraPak MSR Browse our selection of top outdoor gear and apparel brands.

Which types of portable water filters should I consider?

The top types of portable water filters at REI Co-op include: Straw Water Filters Replacement Water Filters Gravity Water Filters Filter Water Bottles Pump Water Filters Whether you're new to the outdoors or a seasoned pro, check out our wide selection of quality outdoor gear and apparel for your next adventure.

How can I earn a Co-op Member Reward on my portable water filters purchase?

REI Co-op Members get 10% back annually on every eligible purchase, including most full-priced portable water filters. (10% is typical but not guaranteed.) To earn or redeem rewards, buy a one-time $30 lifetime membership, or sign in as a member. See details about the Co-op Member Reward .

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Portable Water Filters

(64 products)

Products (64)

Sort: Best Match

KatadynBeFree AC Water Filter Bottle 0.9 L
$54.95
1 reviews with an average rating of 5.0 out of 5 stars
Filter Type:
Bottle
Best Use:
Backpacking, Travel, Hiking
Removes/Destroys:
Protozoa And Bacteria
Weight:
3.66 ounces
LifeStrawPeak Squeeze Water Filter System - 22 fl. oz.
$37.95
186 reviews with an average rating of 4.3 out of 5 stars
Filter Type:
Squeeze
Best Use:
Hiking
Removes/Destroys:
Protozoa And Bacteria
Weight:
3.6 ounces
HydraPakSeeker 3 L Collapsible Water Container + Filter Cap - 100 fl. oz.
$65.00
35 reviews with an average rating of 4.5 out of 5 stars
Filter Type:
Squeeze
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
4.5 ounces
LifeStrawPeak Series Gravity Water Filter System with Safe Water Storage - 8L + 8L
$96.73
Save 35%
compared to $149.95
12 reviews with an average rating of 3.8 out of 5 stars
Filter Type:
Gravity
Best Use:
Camping
Removes/Destroys:
Protozoa And Bacteria
Weight:
Total: 2 lbs. 2.07 oz.; dirty water bag: 1 lb. 2.91 oz.; safe storage bag: 15.17 oz.
REI OUTLET
Top Rated
KatadynBeFree AC 0.5 L Water Filter Bottle
$47.95
47 reviews with an average rating of 4.7 out of 5 stars
Filter Type:
Bottle, Squeeze
Best Use:
Trail Running
Removes/Destroys:
Protozoa And Bacteria
Weight:
2.5 ounces
Top Rated
GraylGeoPress Replacement Purifier Cartridge
$29.95
719 reviews with an average rating of 4.9 out of 5 stars
HydraPakUltraFlask + Filter Cap
$52.00
7 reviews with an average rating of 4.3 out of 5 stars
Filter Type:
Squeeze
Best Use:
Trail Running, Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
2.3 ounces
MSRAutoFlow XL Gravity Filter - 10 L
$139.95
8 reviews with an average rating of 4.0 out of 5 stars
Filter Type:
Gravity
Best Use:
Backpacking, Camping
Removes/Destroys:
Protozoa And Bacteria
Weight:
12 ounces
KatadynBeFree Bottle Replacement Filter
$29.95
18 reviews with an average rating of 1.3 out of 5 stars
LifeStrawGo Series Replacement Membrane Microfilter and Carbon Filter
$25.95
66 reviews with an average rating of 3.7 out of 5 stars
LifeStrawGo Series Insulated Stainless-Steel Water Filter Bottle - 24 fl. oz.
$44.93 - $59.95
201 reviews with an average rating of 4.3 out of 5 stars
Filter Type:
Bottle
Best Use:
Travel, Camping, Hiking
Removes/Destroys:
Protozoa And Bacteria
Weight:
1 lb. 2 oz.
LifeStrawPeak Series Solo Water Filter
$21.93 - $29.95
73 reviews with an average rating of 4.5 out of 5 stars
Filter Type:
Squeeze
Best Use:
Backpacking, Hiking
Removes/Destroys:
Protozoa And Bacteria
Weight:
1.7 ounces
LifeStrawSip Reusable Stainless-Steel Water Filter Straw - Package of 3
$89.95
182 reviews with an average rating of 4.3 out of 5 stars
Filter Type:
Straw
Best Use:
Travel
Removes/Destroys:
Protozoa And Bacteria
Weight:
3 ounces
LifeStrawPeak Series Membrane Microfilter Replacement
$25.95
29 reviews with an average rating of 3.9 out of 5 stars
PlatypusGravityWorks Water Filter System - 6 L
$154.95
0 reviews
Filter Type:
Gravity
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
12.3 ounces
MSRThru-Link In-Line Microfilter
$54.95
22 reviews with an average rating of 4.3 out of 5 stars
Filter Type:
Gravity
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
2.5 ounces
LifeStrawPeak Series Activated Carbon + Ion Exchange Filter Attachment
$14.95
170 reviews with an average rating of 4.2 out of 5 stars
MSRHyperFlow Microfilter Water Filter
$159.95
3 reviews with an average rating of 4.0 out of 5 stars
Filter Type:
Pump
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
7.8 ounces
MSRTrailShot Pocket-Sized Water Filter
$69.95
225 reviews with an average rating of 3.4 out of 5 stars
Filter Type:
Squeeze
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
5.2 ounces
MSRGuardian Gravity Purifier Replacement Cartridge
$249.95
0 reviews
PlatypusDayCap In-Bottle Filter
$49.95
13 reviews with an average rating of 4.2 out of 5 stars
Filter Type:
Bottle
Best Use:
Travel, Backpacking, Hiking
Removes/Destroys:
Protozoa And Bacteria
Weight:
2.6 ounces
Top Rated
KatadynBeFree AC Water Filter Bottle 0.7 L
$49.95
42 reviews with an average rating of 4.7 out of 5 stars
Filter Type:
Bottle
Best Use:
Backpacking, Travel, Hiking
Removes/Destroys:
Protozoa And Bacteria
Weight:
3.28 ounces
LifeStrawSip Reusable Stainless-Steel Water Filter Straw
$34.95
182 reviews with an average rating of 4.3 out of 5 stars
Filter Type:
Straw
Best Use:
Travel
Removes/Destroys:
Protozoa And Bacteria
Weight:
3 ounces
KatadynBeFree Activated Carbon Replacement - Package of 3
$29.95
0 reviews
HydraPakPackFlask Filter Kit - 750 ml
$72.00
4 reviews with an average rating of 5.0 out of 5 stars
Filter Type:
Bottle, Squeeze
Best Use:
Trail Running, Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
4.1 ounces
LifeStrawGo Series 1 L Water Filter Bottle - 33.8 fl. oz.
$49.95
71 reviews with an average rating of 4.0 out of 5 stars
Filter Type:
Bottle
Best Use:
Travel, Hiking
Removes/Destroys:
Protozoa And Bacteria
Weight:
9.4 ounces
PlatypusDayCap Replacement Filter
$34.95
0 reviews
Top Rated
HydraPakBreakaway+ Water Filter Bottle
$48.00 - $50.00
27 reviews with an average rating of 4.7 out of 5 stars
Filter Type:
Squeeze
Best Use:
Mountain Biking, Hiking
Removes/Destroys:
Protozoa And Bacteria
Weight:
3.8 ounces, 4.2 ounces
PlatypusQuickDraw Gravity Filter System - 3 Liter
$99.95
31 reviews with an average rating of 2.0 out of 5 stars
Filter Type:
Gravity
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
8.2 ounces
MSRGuardian Purifier Replacement Cartridge
$239.95
6 reviews with an average rating of 3.3 out of 5 stars