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

(63 products)

Products (63)

Sort: Best Match

PlatypusGravityWorks/CleanStream Replacement Cartridge
$79.95
75 reviews with an average rating of 4.2 out of 5 stars
LifeStrawGo Series Insulated Stainless-Steel Water Filter Bottle - 24 fl. oz.
$59.95
195 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.
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
HydraPakFlux 1.5 L Collapsible Water Bottle + Filter Cap - 50 fl. oz.
$60.00
59 reviews with an average rating of 4.6 out of 5 stars
Filter Type:
Bottle, Squeeze
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
5 ounces
LifeStrawGo Series Insulated Stainless-Steel Water Filter Bottle - 18 fl. oz.
$49.95
88 reviews with an average rating of 4.4 out of 5 stars
Filter Type:
Bottle
Best Use:
Camping, Travel
Removes/Destroys:
Protozoa And Bacteria
Weight:
1 lb. 1.6 oz.
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
LifeStrawPeak Series 3-in-1 Water Filtration Kit
$99.95
0 reviews
Filter Type:
Gravity, Straw, Squeeze
Best Use:
Camping
Removes/Destroys:
Protozoa And Bacteria
Weight:
Total: 13 ounces; Solo Straw: 1.7 ounces; 650 ml Squeeze: 3.2 ounces; 3 L Gravity bag: 8.1 ounces
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
LifeStrawGo Series Replacement Membrane Microfilter and Carbon Filter
$25.95
57 reviews with an average rating of 3.6 out of 5 stars
Top Rated
HydraPak28 mm Filter Kit
$45.00
14 reviews with an average rating of 4.9 out of 5 stars
Filter Type:
Squeeze
Best Use:
Trail Running, Backpacking, Travel
Removes/Destroys:
Protozoa And Bacteria
Weight:
1.6 ounces
Top Rated
GraylUltraPress Replacement Purifier Cartridge
$24.95
170 reviews with an average rating of 4.8 out of 5 stars
HydraPak42 mm Filter Cap
$40.00
21 reviews with an average rating of 3.9 out of 5 stars
Filter Type:
Squeeze
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
2 ounces
LifeStrawGo Series Insulated Stainless-Steel Water Filter Bottle - 34 fl. oz.
$64.95
96 reviews with an average rating of 4.2 out of 5 stars
Filter Type:
Bottle
Best Use:
Travel, Camping
Removes/Destroys:
Protozoa And Bacteria
Weight:
1 lb. 4.8 oz.
KatadynBeFree AC Water Filter Bottle 0.9 L
$54.95
0 reviews
Filter Type:
Bottle
Best Use:
Backpacking, Travel, Hiking
Removes/Destroys:
Protozoa And Bacteria
Weight:
3.66 ounces
HydraPakPackFlask Filter Kit - 750 ml
$72.00
2 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
PlatypusQuickDraw Gravity Filter System - 3 Liter
$99.95
30 reviews with an average rating of 1.9 out of 5 stars
Filter Type:
Gravity
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
8.2 ounces
LifeStrawGo Series 1 L Water Filter Bottle - 33.8 fl. oz.
$49.95
69 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
Top Rated
LifeStrawGo Carbon Filter Replacement - Package of 2
$9.95
88 reviews with an average rating of 4.7 out of 5 stars
KatadynBeFree AC Water Filter Bottle 0.7 L
$49.95
0 reviews
Filter Type:
Bottle
Best Use:
Backpacking, Travel, Hiking
Removes/Destroys:
Protozoa And Bacteria
Weight:
3.28 ounces
HydraPakSeeker 3 L Collapsible Water Container + Filter Cap - 100 fl. oz.
$65.00
34 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
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
163 reviews with an average rating of 4.2 out of 5 stars
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
LifeStrawPeak Series Membrane Microfilter Replacement
$25.95
28 reviews with an average rating of 4.0 out of 5 stars
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
MSRGuardian Gravity Purifier Replacement Cartridge
$249.95
0 reviews
Top Rated
HydraPakBreakaway+ Water Filter Bottle
$48.00 - $50.00
24 reviews with an average rating of 4.6 out of 5 stars
Filter Type:
Squeeze
Best Use:
Mountain Biking, Hiking
Removes/Destroys:
Protozoa And Bacteria
Weight:
3.8 ounces, 4.2 ounces
MSRGuardian Purifier Replacement Cartridge
$239.95
6 reviews with an average rating of 3.3 out of 5 stars
KatadynBeFree Bottle Replacement Filter
$29.95
17 reviews with an average rating of 1.2 out of 5 stars
HydraPakSeeker+ 6 L Gravity Filter Kit
$150.00
0 reviews
Filter Type:
Gravity
Best Use:
Camping, Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
1 lb. 2.48 oz.