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Premium Backcountry Water Filters & Purification Systems

Access safe drinking water anywhere in the wild. Discover our selection of high-performance water filters, microbiological purifiers, squeeze systems, and replacement cartridges engineered to eliminate bacteria, protozoa, and viruses on the trail.

C$99.95
(C$99.95 Incl. tax)
in stock
Katadyn
Gravity BeFree 3.0L Filtration System
C$99.95
(C$99.95 Incl. tax)
C$69.95
(C$69.95 Incl. tax)
in stock
Katadyn updated their BeFree line with the addition of a replaceable activated carbon element, a redesigned cap, and bottle top. Read more
Katadyn
BeFree AC Water Filtration System
Katadyn updated their BeFree line with the addition of a replaceable activated carbon element, a redesigned cap, and bottle top.
C$69.95
(C$69.95 Incl. tax)
C$19.95
(C$19.95 Incl. tax)
in stock
Katadyn
Filter Hose Replacement Kit
C$19.95
(C$19.95 Incl. tax)
C$54.95
(C$54.95 Incl. tax)
in stock
With its simple, rugged design and versatile use modes, the ultralight QuickDraw makes dependable water filtration easier than ever. Read more
Platypus
Quick Draw Microfilter
With its simple, rugged design and versatile use modes, the ultralight QuickDraw makes dependable water filtration easier than ever.
C$54.95
(C$54.95 Incl. tax)
C$179.95
(C$179.95 Incl. tax)
in stock
Our most versatile and comprehensive water treatment system. Read more
MSR
MiniWorks EX Purifier System
Our most versatile and comprehensive water treatment system.
C$179.95
(C$179.95 Incl. tax)
C$69.95
(C$69.95 Incl. tax)
in stock
Provides safe, reliable water when municipal systems are compromised; packaged for long-term, protected storage. Read more
MSR
Home Emergency Water Filter
Provides safe, reliable water when municipal systems are compromised; packaged for long-term, protected storage.
C$69.95
(C$69.95 Incl. tax)
C$19.95
(C$19.95 Incl. tax)
in stock
Katadyn
BeFree AC Flip Cap
C$19.95
(C$19.95 Incl. tax)
C$32.95
(C$32.95 Incl. tax)
in stock
Works with all BeFree Systems (42 mm) except Gravity / Bottle versions. Read more
Katadyn
BeFree AC Replacement - Slate Blue
Works with all BeFree Systems (42 mm) except Gravity / Bottle versions.
C$32.95
(C$32.95 Incl. tax)
C$199.95
(C$199.95 Incl. tax)
in stock
It will change the way you travel in the backcountry. Read more
MSR
HyperFlow Micro Filter
It will change the way you travel in the backcountry.
C$199.95
(C$199.95 Incl. tax)
C$44.95
(C$44.95 Incl. tax)
in stock
A complete maintenance kit for both the MiniWorks and WaterWorks microfilters. Read more
MSR
Miniworks & Waterworks Maintenance Kit
A complete maintenance kit for both the MiniWorks and WaterWorks microfilters.
C$44.95
(C$44.95 Incl. tax)
C$104.95
(C$104.95 Incl. tax)
in stock
Replacement filter cartridge for the AutoFlow XL Gravity Filter system. Read more
MSR
AutoFlow Filter Cartridge, for AutoFlow Gravity Works
Replacement filter cartridge for the AutoFlow XL Gravity Filter system.
C$104.95
(C$104.95 Incl. tax)
C$295.95
(C$295.95 Incl. tax)
in stock
Katadyn
Combi Microfilter
C$295.95
(C$295.95 Incl. tax)
C$21.95
(C$21.95 Incl. tax)
in stock
Katadyn
Hiker Pro Set Housing Replacement Body
C$21.95
(C$21.95 Incl. tax)
C$9.95
(C$9.95 Incl. tax)
in stock
New pump piston for Katadyn Hiker Pro Filter Read more
Katadyn
Hiker Pro Replacement Pump Handle Kit (Set 2) handle and c-clip
New pump piston for Katadyn Hiker Pro Filter
C$9.95
(C$9.95 Incl. tax)
C$13.95
(C$13.95 Incl. tax)
in stock
Katadyn
Vario/Hiker Filter Carrying Bag
C$13.95
(C$13.95 Incl. tax)
C$26.95
(C$26.95 Incl. tax)
out of stock
Its unique design, featuring the filter cup and funnel fit offers flexibility to filter water into bottles with a wide range of mouth sizes, including narrow-mouth bottles such as commercial water bottles, soft drink bottles, canteens and SIGG bottles. Read more
Katadyn
Steripen FitsAll Filter
Its unique design, featuring the filter cup and funnel fit offers flexibility to filter water into bottles with a wide range of mouth sizes, including narrow-mouth bottles such as commercial water bottles, soft drink bottles, canteens and SIGG bottles.
C$26.95
(C$26.95 Incl. tax)
C$419.95
(C$419.95 Incl. tax)
in stock
State-of-the-art virus protection in an easy, high-volume gravity system. Read more
MSR
Guardian Gravity Purifier
State-of-the-art virus protection in an easy, high-volume gravity system.
C$419.95
(C$419.95 Incl. tax)
C$39.95
(C$39.95 Incl. tax)
in stock
Hoses, fittings, and clamps for any GravityWorksâ„¢ system. Read more
Platypus
GravityWorks Replacement Hose Kit 2.0L
Hoses, fittings, and clamps for any GravityWorksâ„¢ system.
C$39.95
(C$39.95 Incl. tax)
C$169.95
(C$169.95 Incl. tax)
in stock
Fast, high-volume water filtration for groups and basecamps. Read more
MSR
Autoflow XL 10L Gravity Filter
Fast, high-volume water filtration for groups and basecamps.
C$169.95
(C$169.95 Incl. tax)
C$80.95
(C$80.95 Incl. tax)
in stock
Replacement ceramic filter element for the MiniWorks and WaterWorks microfilters. Read more
MSR
Ceramic Filter Cartridge, for WaterWorks and MiniWorks
Replacement ceramic filter element for the MiniWorks and WaterWorks microfilters.
C$80.95
(C$80.95 Incl. tax)
C$159.95
(C$159.95 Incl. tax)
in stock
Platypus GravityWorks 2.0L Bottle Kit is sa minimalist, pump-free water filtration for 1-2 people Read more
Platypus
GravityWorks 2.0L Bottle Kit
Platypus GravityWorks 2.0L Bottle Kit is sa minimalist, pump-free water filtration for 1-2 people
C$159.95
(C$159.95 Incl. tax)
C$109.95
(C$109.95 Incl. tax)
in stock
The Platypus GravityWorks Replacement Filter replaces old GravityWorks microfilters. Read more
Platypus
GravityWorks Replacement Water Filter
The Platypus GravityWorks Replacement Filter replaces old GravityWorks microfilters.
C$109.95
(C$109.95 Incl. tax)
C$59.95
(C$59.95 Incl. tax)
in stock
Fast-flow design filters up to 2 liters per minute, allowing you to drink directly from the bottle with no pumping or setup required. Read more
Katadyn
BeFree AC Bottle .7L - Smoke
Fast-flow design filters up to 2 liters per minute, allowing you to drink directly from the bottle with no pumping or setup required.
C$59.95
(C$59.95 Incl. tax)
C$64.95
(C$64.95 Incl. tax)
in stock
Gives you the freedom to drink anytime, anywhere. Read more
Katadyn
BeFree Water Filtration System
Gives you the freedom to drink anytime, anywhere.
C$64.95
(C$64.95 Incl. tax)
Premium Backcountry Water Filters & Purification Systems

Securing a clean source of hydration is your top priority when exploring the backcountry

Our Water Filtration and Purification collection features advanced, field-tested systems designed to remove dangerous waterborne pathogens like Giardia, Cryptosporidium, and bacteria from natural water sources. Whether you are trail running, thru-hiking, or establishing a remote wilderness basecamp, we stock reliable filtration methods that convert wilderness rivers, lakes, and streams into safe, clean drinking water.

Explore our versatile inventory of lightweight squeeze filters, high-capacity gravity systems for groups, rapid pump filters, and chemical purification treatments for emergency backup. We also carry essential replacement filter cartridges and maintenance kits to ensure your system remains unclogged and fully operational during long expeditions. Featuring top industry brands like Platypus, Katadyn, and MSR, our collection at Monashee Outdoors provides the technical hydration safety tools you need to protect your health and stay properly hydrated on every adventure.