Maker’s warranty: Limited lifetime warranty; covers original purchasers from authorized dealers; repair first; fee repairs. Platypus’s terms, read Oct 25, 2026
The Platypus GravityWorks is a high capacity, pump-free, gravity water filtration system that's ideal for groups, basecamps and road tripping.
Against every one of the squeeze, bottle & in-line filters in the RidgeNote register with a published figure. Manufacturer-listed; sources and dates are on this page.
The lightest of the squeeze, bottle & in-line filters on record is Sawyer Micro Squeeze Water Filtration System at 2.0 oz — 292 g less and $101 less.
The cheapest is Sawyer Mini Water Filtration System at $28.99 — $106 less and 292 g lighter.
Main models on the same shelf, compared with the GravityWorks Water Filter System on the makers’ published figures; the tick on each bar is the GravityWorks Water Filter System.
Platypus
QuickDraw 2L Filter System
$55 less
6.6 oz lighter (188 g)
MSR
TrailShot Pocket-Sized Water Filter
$65 less
7.3 oz lighter (207 g)
Platypus
QuickDraw 1L Filter System
$80 less
9.0 oz lighter (254 g)
Not ranked: 1 with no published list price.
See all 9 →Backpacking water filters and purifiers ranked by published weight, kind by kind: 15 models.
Sawyer Squeeze vs Katadyn BeFree: the BeFree to drink from its 42 mm flask and clean by shaking; the Squeeze for 28 mm bottles, silty water and long life.
