Two filters come up more than any others when ultralight hikers talk water: the Platypus QuickDraw and the Sawyer Squeeze. Both are hollow-fiber squeeze filters, both are light, and both handle the pathogens you actually meet in North American backcountry water. The differences are real but narrow, and the right pick depends more on how you like to filter than on any spec-sheet winner.
This is a comparison, not a roundup. If you want the wider picture of how a filter fits into a lightweight, thread-standardized kit, start with our overview of the modular 28-410 water system. Prices and specs below were current as of 2026; check the manufacturer pages before you buy.
What a hollow-fiber filter does and doesn't do
Both of these are mechanical filters. Water is pushed through bundles of hollow fibers whose pore size is small enough to physically block bacteria and protozoa but not viruses. The CDC's guidance is the useful anchor here: a filter with an absolute pore size of about 0.3 micron or smaller will remove bacteria and protozoan parasites like Giardia and Cryptosporidium, but not viruses, which are far smaller and need chemical treatment or a purifier.
In practice, that limitation rarely matters in the U.S. backcountry, where waterborne viruses are not a common concern. What neither filter removes: viruses, heavy metals, hydrocarbons, or the cyanotoxins produced by blue-green algae blooms. Avoid water near visible algae, overused campsites, bathing areas, and livestock, and carry a chemical backup (chlorine dioxide tablets are the usual choice) for the sources you can't fully trust.
Platypus QuickDraw
The QuickDraw is the faster, simpler of the two. The filter cartridge alone weighs about 2.2 oz (62 g); bought as the system with a 1 L dirty reservoir, the whole package is 3.3 oz (95 g). Its pore size is 0.2 micron, and it flows quickly, up to about 3 liters per minute when clean.
- Pore size: 0.2 micron
- Weight: ~2.2 oz (62 g) filter; ~3.3 oz (95 g) with 1 L reservoir
- Flow: up to ~3 L/min when clean
- Rated life: up to ~1,000 L per cartridge
- Removes: 99.9999% of bacteria, 99.9% of protozoa
- Maintenance: shake-to-clean or tool-free backflush
Its dual-thread design fits the QuickDraw reservoir, Smartwater bottles, and other 28-410 bottles. The tradeoffs are the shorter rated lifespan and the larger 0.2 micron pore, which is still well within safe range for bacteria and protozoa but coarser than the Sawyer.
Sawyer Squeeze (with CNOC Vecto)
The Sawyer Squeeze is the finer-filtering, longer-lived option, and the classic thru-hiker pairing is a Squeeze with a CNOC Vecto dirty bag. The filter is 0.1 micron absolute, weighs about 2.2 oz (63 g) dry and 3.0 oz (85 g) wet, and the 2 L CNOC Vecto adds about 2.6 oz (74 g).
- Pore size: 0.1 micron absolute
- Weight: ~2.2 oz (63 g) dry, ~3.0 oz (85 g) wet; CNOC Vecto ~2.6 oz (74 g)
- Removes: 99.99999% of bacteria, 99.9999% of protozoa
- Lifespan: Sawyer backs the filter with a lifetime limited warranty; with regular backflushing it lasts most users a very long time
- Maintenance: backflush with the included syringe, which restores up to about 98.5% of flow each time
On the "100,000 gallons" claim: Sawyer's old marketing figures (100,000 gallons, or a million) were never a spec you should plan around. Sawyer now frames the filter as lasting the lifetime of most users as long as you backflush it regularly. Treat lifespan as "effectively very long with maintenance," not a fixed number.
One practical note on threads: the CNOC Vecto comes in a 28 mm version (for the Sawyer, QuickDraw, and most 28-410 filters) and a 42 mm version (for the Katadyn BeFree). Buy the one that matches your filter. The Sawyer Mini and Micro thread slightly differently from the full Squeeze, but they still fit standard 28 mm bottles.
Side by side
| Platypus QuickDraw | Sawyer Squeeze + CNOC Vecto | |
|---|---|---|
| Pore size | 0.2 micron | 0.1 micron absolute |
| Filter weight | ~2.2 oz (62 g) | ~2.2 oz (63 g) dry / 3.0 oz (85 g) wet |
| System weight | ~3.3 oz (95 g) with 1 L reservoir | ~5.6 oz (159 g) with 2 L Vecto |
| Flow | Faster (up to ~3 L/min) | Slower, finer |
| Lifespan | Rated ~1,000 L | Effectively very long with backflushing |
| Best for | Speed and minimal weight, cleaner sources | Longevity, higher-contamination sources |
Which one should you carry?
Choose the Platypus QuickDraw if you want the lightest, fastest setup and you mostly hike where sources are clean and high, and if you'd rather shake-and-go than baby a filter. Choose the Sawyer Squeeze if you want the finer 0.1 micron pore, the longer effective life, and the flexibility of the CNOC-and-filter system, and if you don't mind a slower squeeze and periodic backflushing.
Whichever you pick, both filters lose a little flow in the cold and can be destroyed by a hard freeze, so sleep with the filter in your quilt on freezing nights. And carry a chemical backup for the sources you can't fully trust.
Fitting it into a lighter system
Both filters thread onto 28-410 bottles, which is what lets you shed the dirty-bag-plus-transfer routine. If you filter straight into a rigid 28-410 bottle like the NOBO Bottle, you can scoop, thread the filter on top, and squeeze, with no separate reservoir at all. For a full breakdown of which filters seal on the NOBO and which only thread on, see our threading and filter compatibility guide.
For camp, a gravity setup keeps you off the squeeze entirely: hang your dirty bag and let physics do the work. Our Hang System suspends the bladder you already own and feeds whichever filter you chose above. It's a 7 g way to filter a couple of liters while you set up the tent.
