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MSR - SweetWater Microfilter

Price: $89.95

Quick Overview

Great lightweight water filter.
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Lightweight and compact, the SweetWater® Microfilter makes water filtration fast and easy.

International Restrictions Apply
Manufacturer MSR
Weight 11 oz.
Made in USA
Mfg Sku/Part Number 02237
Treatment Type Pump Filter
Filter Material Pleated Glassfiber
Field Maintainable No
Micron Rating 0.2
Other Features Pumps water on both up and down strokes for a fast flow rate of 1.25 liters per minute
Unique lever-action pump handle has a 4-to-1 mechanical advantage, so you don’t have to work as hard
Weighing just 11 oz., it’s one of the lightest filters on the market
Handle folds flat when not in use for easy packing and storage
Eliminates over 99.9999% of all waterborne bacteria and 99.9% of common protozoan parasites, such as giardia and cryptosporidia
Simple brushing will restore a clogged filter, and the pump lets you know when the filter needs replacing (each cartridge filters up to 200 gallons of water)
Product Reviews
Product Reviews
Quick and ready pump Review by Polycamperous

A sure choice for clean backcountry water filtration.

I've had one of these for years, and it's an out of the box winner and a champ even after years in the pack and on the trail.

It's a simple design (tube and pump) isn't exactly comfortable to handle when filling an outing's bottles and bladders, but I've never had an issue with the water quality (zero sediment and coloration, plus a clean taste). And that's what's important. If it ain't broke, don't fix it. I hope this filter stays in the line for many more years to come.

Admittedly, I used this longer than was recommended without cleaning the filter, but even then, I noticed nothing that would indicate a deterioration or its ability or of the quality of water produced. Clean from day one, and after years.

The breakdown and pack up design isn't completely intuitive, but easily understood, and once discovered, even appreciate for its simplicity (minimal moving parts and junctures).

(Posted on 7/10/13)

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Questions and Answers
US Size Weight Capacity Weight Capacity with Tails
22" up to 180 lbs. up to 250 lbs.
25" 120 - 220 lbs. 120 - 280 lbs.
30" 150 - 280 lbs. 180 - 300+ lbs.


Backcountry Gear gets it: camping and hiking gear should help get you out into nature while not weighing you down with what it takes to get there. Your outdoor adventure shouldn't be hindered by heavy kitchenware, overwrought backpacks, or complicated camping tents. Get equipped with the right gear, but not too much. It's about efficiency and versatility, minimum weight for maximum benefit. Backcountry Gear, where minimalism meets productivity.

Backcountry Gear knows lightweight backpacking is all about keeping things compact and sensible. Hiking gear should be sturdy, reliable, and lightweight. Camping tents should be constructed of lightweight, durable materials, and be easy to assemble. Kitchen kits should be featherlight and easy to clean. Trekking poles should keep you balanced. Accessories like medical kits should be comprehensive and intuitive. We understand, and we understand not every hiker is the same.

Our inventory has a backpack for every pursuit. We have ultralight daypacks, hydration packs, packs for kids, duffles, and child carriers. No one gets left out. We have dog packs, lumbar packs, dry bags, travel packs and luggage, courier bags, shoulder bags, and external frame backpacks. They’re all engineered by the best in their fields with features that make getting to what you need rapid and simple.

Backcountry Gear has reliable ultralight stoves and titanium cookware to make cooking a cinch and camping a treat. Canister stoves or liquid fuel stoves, we have one right for you. Boil water quickly with Jetboil's Sol and MSR's Reactor, or go ultralight with MSR's Micro Rocket and Primus' Express Stove. Keep weight down with ultralight titanium pots, pans, and utensils from Snow Peak and Evernew and keep going.


For multi-day hikes, Backcountry Gear has go-to water treatment options for every water source. Pump and be sure with MSR's Hyperflow Microfilter or Katadyn's Hiker Pro Microfilter. Or avoid chemicals and pumps altogether with gravity filtration systems from Platypus or UV sterilizers from Steripen.


Headquartered in Eugene, Oregon, Backcountry Gear has the best camping and hiking gear from the global industry leaders Osprey, Western Mountaineering, and Sierra Designs. We stock the best in sleeping bags, lightweight tents, and ultralight backpacks, too. When you plan for the outdoors, plan on, your first stop for outdoor adventure. Every step of the way.