Any Quality filters should work in our part of the world.
Sawyer Squeeze Water Filter
Favorite UL and economy option
"Mini” and “Micro” versions will reduce weight but have painfully slow flow rates and are NOT recommended
Bags that come with these filters are not great
Consider replacing with Smartwater bottle
Quality Gravity Filter such as
Platypus GravityWorks
MSR AutoFlow XL Gravity Filter
Guardian Gravity Purifier
Sawyer Gravity Filter
MSR Thru-Link Inline Water Filter
Lets gravity do the work
Requires wait time
Platypus GravityWorks
Good group kit, especially for canoe or car camping
Filter Pore Size: 0.2 Microns
Filtration rate: 1.5L/minute
Filter media: Hollow Fiber
MSR AutoFlow XL Gravity Filter
Relatively lightweight group setup
10L of capacity!
Does not come with clean bag
Setup for Nalgene bottle - great if that is what you use
Filter Pore Size: 0.2 Microns
Filtration rate: 1.75L/minute
Filter media: Hollow Fiber
Guardian Gravity Purifier
Filter Pore Size: 0.02 Microns
Filtration rate: 0.5L/minute
Filter media: Advanced Hollow Fiber
Sawyer Gravity Filter
Filter Pore Size: 0.1 Microns Absolute
Filtration rate: <0.5L/minute
Filter media: Hollow Fiber
Note: flow is even slower through the Micro Squeeze Filter (in case you are looking to save weight)
MSR Thru-Link Inline Water Filter
Filter only (bag and line not included)
Fantastic if you have a water reservoir
Filter Pore Size: 0.2 Microns
Filtration rate: 1.5L/minute
Filter media: Hollow Fiber
Mounts on Bottle or has built in bottle
Platypus QuickDraw Microfilter System
Difficult to use if running
Can't be used as an inline filter
Filter Pore Size: 0.2 Microns
Filtration rate: 3L/minute
Filter media: Hollow Fiber
Katadyn BeFree Collapsible Bottle
Great lightweight setup
Short lifespan
Does NOT fit standard sized bottles
Filter Pore Size: 0.1 Microns
Filtration rate: 2L/minute
Filter media: Hollow Fiber
LifeStraw Peak Squeeze
Similar to Sawyer but heavier and even shorter lifespan
Filter Pore Size: 0.2 Microns
Filtration rate: 3L/minute
Filter media: Hollow Fiber
Sawyer Mini Filter
Doesn't perform as well as Sawyer Squeeze Water Filter
SLOW flow
Filter Pore Size: 0.1 Microns
Filtration rate: Extremely LOW
Filter media: Hollow Fiber
Grayl 24oz GeoPress Purifier
French-press-style plunger
Lifespan of only 65 gallons
Not practical for extended trips
only treat 24 oz at a time
Nontraditional
"The non-woven substrate for our technology has an effective pore size of about 1micron. But the technology doesn't rely on pore size (size exclusion). Instead, powerful electroadhesion holds onto pathogens - virus, bacteria and protozoa. And Activated Carbon removes chemicals and heavy metals."
Pore size of about 1 micron raises concerns
Filter Pore Size: ??? Microns
Filtration rate: 5L/minute press action
Filter media: non-woven ceramic fibers
LifeStraw Go
Relatively long filter life
Heavy and bulky for backpacking
Filter Pore Size: 0.2 Microns
Filtration rate: ???L/minute
Filter media: Activated carbon filter
Ultralight
Sawyer Squeeze Water Filter
Favorite UL and economy option
"Mini” and “Micro” versions will reduce weight but have painfully slow flow rates
Bags are not great
Consider replacing with Smartwater bottle or longer-lasting Evernew or CNOC reservoir
Tend to burst after about 3-4 outings
Filter Pore Size: 0.1 Microns
Filtration rate: 1.4L/minute
Filter media: Hollow Fiber
Platypus QuickDraw
Flow Rate
Tends to be better than the Sawyer
Some get them out of the box with a slow flow rate and in one case - NO flow rate!
Filter Pore Size: 0.2 Microns
Filtration rate: 3L/minute (yah right)
Filter media: Hollow Fiber
MSR Guardian Purifier System
Overkill
Expensive
Filter Pore Size: 0.02 Microns
Filtration rate: 2.5L/minute
Filter media: Advanced Hollow Fiber
Katadyn Hiker Microfilter
Short filter life
Expensive replacement filter
Filter Pore Size: 0.2 Microns
Filtration rate: 1L/minute
Filter media: Pleated Glass Fiber w/ Activated Carbon Core
MSR MiniWorks EX Microfilter
Ceramic!
Not as delicate as hollow fiber
Heavier
Filter Pore Size: 0.2 Microns
Filtration rate: 1L/minute
Filter media: Ceramic
Katadyn Pocket Water Filter
Expensive
Expedition/Guide quality
Ceramic!
Not as delicate as hollow fiber
Heavier
Filter Pore Size: 0.2 Microns
Filtration rate: 1L/minute
Filter media: Ceramic