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 Filter Water Bottles 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

(60 products)

Products (60)

Sort: Best Match

Top Rated
SawyerSqueeze Water Filtration System with Cnoc Premium 2-Liter Bladder
$64.95
46 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 Sep 1
Top Rated
KatadynBeFree AC 1.0 L Water Filter Bottle - Double-Layer
$39.69
Save 25%
compared to $52.95
62 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 Sep 1
Top Rated
KatadynBeFree AC 1.0 L Water Filter Bottle
$39.69
Save 25%
compared to $52.95
65 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
Sale Ends Aug 28
LifeStrawGo Series BPA-Free Water Filter Bottle - 22 fl. oz.
$22.39
Save 50%
compared to $44.95
Members use code LABORDAY2025 for an extra 20% off at REI Outlet
158 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
Sale Ends Aug 28
LifeStrawGo Series Water Filter Bottle - 34 fl. oz.
$22.39
Save 50%
compared to $44.95
Members use code LABORDAY2025 for an extra 20% off at REI Outlet
9 reviews with an average rating of 3.7 out of 5 stars
Filter Type:
Bottle
Best Use:
Travel, Hiking
Removes/Destroys:
Protozoa And Bacteria
Weight:
9.45 ounces
REI OUTLET
SawyerSqueeze Water Filter System
$45.95
555 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 Sep 1
KatadynGravity BeFree Water Filtration System - 3 Liters
$59.89
Save 25%
compared to $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
Sale Ends Sep 1
Top Rated
LifeStrawPeak Series Water Filter Straw
$18.69
Save 25%
compared to $24.95
236 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
SawyerSqueeze Water Filtration System with Cnoc Premium 1-Liter Bottle
$59.95
15 reviews with an average rating of 4.2 out of 5 stars
Filter Type:
Squeeze
Best Use:
Backpacking, Hiking
Removes/Destroys:
Protozoa And Bacteria
Weight:
4.8 ounces
Sale Ends Sep 1
KatadynHiker Pro Clear Microfilter
$74.89
Save 25%
compared to $99.95
224 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
Sale Ends Aug 28
LifeStrawPeak Series Gravity Water Filter System with Safe Water Storage - 8L + 8L
$74.89
Save 50%
compared to $149.95
Members use code LABORDAY2025 for an extra 20% off at REI Outlet
10 reviews with an average rating of 4.0 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
Sale Ends Sep 1
KatadynHiker Pro Replacement Cartridge
$44.89
Save 25%
compared to $59.95
64 reviews with an average rating of 4.0 out of 5 stars
SawyerDual-Threaded MINI Water Filtration System - Package of 2
$36.95
2 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 Sep 1
KatadynBeFree Gravity Water Filter - 6 Liters
$89.89
Save 25%
compared to $119.95
46 reviews with an average rating of 4.1 out of 5 stars
Filter Type:
Gravity
Best Use:
Backpacking, Camping
Removes/Destroys:
Protozoa And Bacteria
Weight:
8.9 ounces
Top Rated
LifeStrawPeak Gravity Water Filter System - 3 Liters
$65.95
197 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 Sep 1
Top Rated
LifeStrawPeak Series Solo Water Filter
$22.39
Save 25%
compared to $29.95
65 reviews with an average rating of 4.6 out of 5 stars
Filter Type:
Squeeze
Best Use:
Backpacking, Hiking
Removes/Destroys:
Protozoa And Bacteria
Weight:
1.7 ounces
PlatypusGravityWorks Water Filter System - 4 L
$134.95
17 reviews with an average rating of 3.8 out of 5 stars
Filter Type:
Gravity
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
11.5 ounces
Sale Ends Sep 1
Top Rated
KatadynBeFree AC 0.5 L Water Filter Bottle
$35.89
Save 25%
compared to $47.95
39 reviews with an average rating of 4.8 out of 5 stars
Filter Type:
Bottle, Squeeze
Best Use:
Trail Running
Removes/Destroys:
Protozoa And Bacteria
Weight:
2.5 ounces
Sale Ends Sep 1
KatadynHiker Microfilter
$67.39
Save 25%
compared to $89.95
305 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
AquamiraWater Treatment - 1 oz.
$14.95
72 reviews with an average rating of 4.3 out of 5 stars
PlatypusQuickDraw Filter System - 1 Liter
$54.95
29 reviews with an average rating of 3.6 out of 5 stars
Filter Type:
Squeeze
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
3.3 ounces
LifeStrawPeak Squeeze Water Filter System - 33.8 fl. oz.
$43.95
294 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
Top Rated
GraylGeoPress Replacement Purifier Cartridge
$29.95
666 reviews with an average rating of 4.9 out of 5 stars
PlatypusQuickDraw Filter
$39.95
23 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 Sep 1
Top Rated
KatadynPocket Water Filter
$322.39
Save 25%
compared to $429.95
80 reviews with an average rating of 4.7 out of 5 stars
Filter Type:
Pump
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
1 lb. 3 oz.
Sale Ends Sep 1
MSRAutoFlow XL Gravity Filter - 10 L
$96.89
Save 25%
compared to $129.95
7 reviews with an average rating of 3.9 out of 5 stars
Filter Type:
Gravity
Best Use:
Backpacking, Camping
Removes/Destroys:
Protozoa And Bacteria
Weight:
12 ounces
PlatypusGravityWorks/CleanStream Replacement Cartridge
$76.95
70 reviews with an average rating of 4.2 out of 5 stars
Top Rated
SawyerMicro Squeeze Water Filtration System with Cnoc Premium 750 ml Bladder
$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
Sale Ends Sep 1
MSRMiniWorks EX Water Filter
$92.89
Save 25%
compared to $124.95
9 reviews with an average rating of 4.3 out of 5 stars
Filter Type:
Pump
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
14.6 ounces
Top Rated
HydraPakFlux 1.5 L Collapsible Water Bottle + Filter Cap - 50 fl. oz.
$60.00
56 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