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
45 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
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
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
SawyerSqueeze Water Filter System
$45.95
557 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
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
Top Rated
LifeStrawPeak Gravity Water Filter System - 3 Liters
$65.95
196 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
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
LifeStrawGo Series BPA-Free Water Filter Bottle - 22 fl. oz.
$32.73
Save 27%
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 Sep 1
KatadynHiker Pro Clear Microfilter
$74.89
Save 25%
compared to $99.95
223 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
PlatypusGravityWorks Water Filter System - 4 L
$134.95
16 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
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
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
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
PlatypusQuickDraw Filter System - 1 Liter
$54.95
28 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
LifeStrawGo Series Water Filter Bottle - 34 fl. oz.
$32.73
Save 27%
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
AquamiraWater Treatment - 1 oz.
$14.95
71 reviews with an average rating of 4.4 out of 5 stars
Sale Ends Sep 1
KatadynHiker Microfilter
$67.39
Save 25%
compared to $89.95
304 reviews with an average rating of 4.2 out of 5 stars
Filter Type:
Pump
Best Use:
Backpacking
Removes/Destroys:
Protozoa And Bacteria
Weight:
11 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
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
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
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
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
PlatypusGravityWorks/CleanStream Replacement Cartridge
$76.95
70 reviews with an average rating of 4.2 out of 5 stars
Top Rated
GraylGeoPress Replacement Purifier Cartridge
$29.95
666 reviews with an average rating of 4.9 out of 5 stars
LifeStrawGo Series BPA-Free Water Filter Bottle - 22 fl. oz.
$44.95
213 reviews with an average rating of 4.2 out of 5 stars
Filter Type:
Bottle
Best Use:
Backpacking, Travel, Hiking
Removes/Destroys:
Protozoa And Bacteria
Weight:
9 ounces
LifeStrawPeak Squeeze Water Filter System - 22 fl. oz.
$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
LifeStrawSip Reusable Stainless-Steel Water Filter Straw
$34.95
148 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
Top Rated
HydraPakSeeker 3 L Collapsible Water Container + Filter Cap - 100 fl. oz.
$65.00
31 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
Sale Ends Sep 1
MSRAutoFlow XL Gravity Filter - 10 L
$96.89
Save 25%
compared to $129.95
6 reviews with an average rating of 3.7 out of 5 stars
Filter Type:
Gravity
Best Use:
Backpacking, Camping
Removes/Destroys:
Protozoa And Bacteria
Weight:
12 ounces