Sawyer 4L Gravity Filtration System

photo: Sawyer 4L Gravity Filtration System pump/gravity water filter
Sawyer says:

A time tested favorite, Sawyer’s 0.1 Micron Gravity Filtering System simplifies backcountry hydration needs. This versatile, safe, and highly effective bag system is practically hands free. Just hang the system from a tree or any source off the ground, and gravity does all the work quickly — filtering 2 liters of water in as little as 90 seconds.

Packing Sawyer’s Point ONE filter mechanism (rated to 0.1 micron absolute filtration), the Gravity Filtering System removes 99.99999% of all bacteria, such as salmonella, cholera, leptospirosis and E.coli, and removes 99.9999% of all protozoa (such as giardia and cryptosporidium).

It comes in two sizes (2- and 4-liter) and in two configurations — either a single bag (for filtering into your own container) or a dual-bag package (one for dirty water, one for clean water).


Price Historic Range: $111.93-$149.00
Volume 4 L
Filter Material 0.1 Micron Absolute Hollow Fiber Membrane
Removes Bacteria, Protozoa, and Cysts
Complete Weight 16 oz
Package Weight 12 oz
Recommended Use Emergency preparedness, hiking, backpacking, ultralight backpacking, camping, paddling, group camping


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