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 Filter Water Bottles Replacement Water Filters Gravity Water Filters 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

(61 products)

Products (61)

Sort: Best Match

Sale Ends Jul 7
Top Rated
SawyerSqueeze Water Filtration System with Cnoc Premium 2-Liter Bladder
$48.69
Save 25%
compared to $64.95
39 reviews with an average rating of 4.8 out of 5 stars
Filter Type:
Gravity, Squeeze
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
5.8 ounces
Sale Ends Jul 7
SawyerSqueeze Water Filter System
$34.39
Save 25%
compared to $45.95
550 reviews with an average rating of 4.2 out of 5 stars
Filter Type:
Squeeze, Gravity
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
3 ounces
Sale Ends Jul 7
LifeStrawPeak Squeeze Water Filter System - 33.8 fl. oz.
$30.69
Save 30%
compared to $43.95
292 reviews with an average rating of 4.3 out of 5 stars
Filter Type:
Squeeze
Best Use:
Hiking
Removes/Destroys:
Protozoa And Bacteria
Weight:
3.9 ounces
LifeStrawGo 1 L Water Bottle with Filter - 34 fl. oz.
$29.73
Save 25%
compared to $39.95
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
319 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:
9.45 ounces
REI OUTLET
Top Rated
LifeStrawGo Stainless-Steel Water Filter Bottle - 24 fl. oz.
$36.73
Save 26%
compared to $49.95
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
121 reviews with an average rating of 4.7 out of 5 stars
Filter Type:
Bottle
Best Use:
Hiking
Removes/Destroys:
Protozoa And Bacteria
Weight:
1 lb. 2.17 oz.
REI OUTLET
Sale Ends Jul 7
PlatypusGravityWorks Water Filter System - 4 L
$101.19
Save 25%
compared to $134.95
10 reviews with an average rating of 4.0 out of 5 stars
Filter Type:
Gravity
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
11.5 ounces
LifeStrawGo Series BPA-Free Water Filter Bottle - 22 fl. oz.
$25.73
Save 26%
compared to $34.95
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
327 reviews with an average rating of 4.2 out of 5 stars
Filter Type:
Bottle
Best Use:
Camping, Travel
Removes/Destroys:
Protozoa And Bacteria
Weight:
8.71 ounces
REI OUTLET
Top Rated
KatadynBeFree AC 1.0 L Water Filter Bottle - Double-Layer
$52.95 - $59.95
51 reviews with an average rating of 4.8 out of 5 stars
Filter Type:
Bottle, Squeeze
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
3 ounces
Sale Ends Jul 7
SawyerDual-Threaded MINI Water Filtration System - Package of 2
$27.69
Save 25%
compared to $36.95
1 reviews with an average rating of 5.0 out of 5 stars
Filter Type:
Squeeze
Best Use:
Backpacking, Hiking, Emergency Preparedness
Removes/Destroys:
Protozoa And Bacteria
Weight:
1.4 ounces
Sale Ends Jul 7
Top Rated
SawyerSqueeze Water Filtration System with Cnoc Premium 1-Liter Bottle
$44.89
Save 25%
compared to $59.95
13 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:
4.8 ounces
KatadynBeFree Replacement Filter
$29.95
137 reviews with an average rating of 4.0 out of 5 stars
AquamiraWater Treatment - 1 oz.
$14.95
69 reviews with an average rating of 4.3 out of 5 stars
Sale Ends Jul 7
PlatypusQuickDraw Filter
$29.89
Save 25%
compared to $39.95
22 reviews with an average rating of 4.0 out of 5 stars
Filter Type:
Squeeze
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
2.9 ounces
Sale Ends Jul 7
LifeStrawPeak Squeeze Water Filter System - 22 fl. oz.
$26.49
Save 30%
compared to $37.95
174 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
Sale Ends Jul 7
PlatypusQuickDraw Filter System - 1 Liter
$41.19
Save 25%
compared to $54.95
23 reviews with an average rating of 3.5 out of 5 stars
Filter Type:
Squeeze
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
3.3 ounces
Top Rated
LifeStrawPeak Series Water Filter Straw
$24.95
233 reviews with an average rating of 4.6 out of 5 stars
Filter Type:
Straw
Best Use:
Backpacking, Emergency Preparedness
Removes/Destroys:
Protozoa And Bacteria
Weight:
2.3 ounces
Top Rated
LifeStrawPeak Gravity Water Filter System - 3 Liters
$65.95
195 reviews with an average rating of 4.5 out of 5 stars
Filter Type:
Gravity
Best Use:
Camping, Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
8.1 ounces
Sale Ends Jul 7
PlatypusGravityWorks/CleanStream Replacement Cartridge
$57.69
Save 25%
compared to $76.95
68 reviews with an average rating of 4.3 out of 5 stars
Sale Ends Jul 7
Top Rated
SawyerMicro Squeeze Water Filtration System with Cnoc Premium 750 ml Bladder
$37.39
Save 25%
compared to $49.95
11 reviews with an average rating of 4.9 out of 5 stars
Filter Type:
Squeeze
Best Use:
Trail Running
Removes/Destroys:
Protozoa And Bacteria
Weight:
3.4 ounces
Top Rated
KatadynBeFree AC 1.0 L Water Filter Bottle
$52.95
56 reviews with an average rating of 4.7 out of 5 stars
Filter Type:
Bottle
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
2.7 ounces
KatadynGravity BeFree Water Filtration System - 3 Liters
$79.95
243 reviews with an average rating of 4.1 out of 5 stars
Filter Type:
Gravity
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
6.8 ounces
KatadynHiker/Hiker Pro/Base Camp Replacement Element
$59.95
63 reviews with an average rating of 4.0 out of 5 stars
KatadynHiker Pro Clear Microfilter
$99.95
215 reviews with an average rating of 4.0 out of 5 stars
Filter Type:
Pump
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
11 ounces
KatadynHiker Microfilter
$89.95
302 reviews with an average rating of 4.1 out of 5 stars
Filter Type:
Pump
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
11 ounces
MSRMiniWorks EX Water Filter
$124.95
7 reviews with an average rating of 4.1 out of 5 stars
Filter Type:
Pump
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
14.6 ounces
Top Rated
LifeStrawGo Carbon Filter Replacement - Package of 2
$9.95
71 reviews with an average rating of 4.7 out of 5 stars
Top Rated
GraylGeoPress Replacement Purifier Cartridge
$29.95
656 reviews with an average rating of 4.9 out of 5 stars
LifeStrawSip Reusable Stainless-Steel Water Filter Straw
$34.95
141 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
HydraPak42 mm Filter Cap
$35.00
17 reviews with an average rating of 4.1 out of 5 stars
Filter Type:
Squeeze
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
2 ounces
LifeStrawGo Series BPA-Free Water Filter Bottle - 22 fl. oz.
$32.73
Save 27%
compared to $44.95
Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
149 reviews with an average rating of 4.3 out of 5 stars
Filter Type:
Bottle
Best Use:
Camping, Travel
Removes/Destroys:
Protozoa And Bacteria
Weight:
8.71 ounces
REI OUTLET