Online: www.REI.com
URL for this product:

From the U.S. and Canada — Call 1-800-426-4840
Mon. through Sun., 4 a.m. through 11 p.m. PT.
International — Call 1-253-891-2500
Mon. through Sun., 4 a.m. through 11 p.m. PT. English language only.

Platypus GravityWorks Filter System Bottle Kit - 2 Liter

$99.95

(3)

Item # 849793

REI Members get back an estimated $ 10.00 on this item as part of their annual member refund.

The REI Member Dividend

The REI dividend is a unique benefit of membership in the REI co-op. It's comprised of your member refund—typically 10% back on eligible purchases—and/or your REI Visa® card rebates.

Each March, active REI members and REI Visa cardholders who earned a rebate receive a refund in the form of an annual dividend notice.

Only active members receive annual dividend notices. To maintain your active status as an REI member, you need to make net merchandise or shipping purchases of at least $10 per year, unless you joined that year. Member numbers are issued in one name and only that person receives the member refund. Your number can be used by others in your family, but it cannot be transferred to someone else.

Questions? Call us at 1-800-426-4840 for more about your dividend or its redemption.

Learn more

100% Satisfaction Guaranteed
Gear and Advice You Can Trust

This item ships for free! Learn more

To view videos or use the zoom feature on REI's websites, please download the latest version of Adobe Flash Player.

NOW PLAYING

Platypus took the already fast and easy-to-use GravityWorks™ filter system and came up with this smaller and lighter 2-liter version to fill your water bottles on backcountry adventures.

System includes a 2-liter dirty collection reservoir, GravityWorks filter cartridge, universal bottle adapter and hoses
Fill the dirty collection reservoir, hang it above your water bottle and let gravity carry the water through the filter and hoses—filtering water has never been so easy!
Bottle adapter fits Platypus and most Nalgene, MSR, Sigg and Klean Kanteen bottles (sold separately); also attaches to most hydration reservoir shutoff valves and tubes
Hollow fiber filter technology offers a high flow rate of 1.5 liters per min.
Filter physically removes particles, protozoa, and bacteria down to 0.2 microns in size, including giardia, salmonella, cryptosporidia and others
Unfiltered reservoir features a quick-disconnect valve that automatically shuts off the flow of water when hose is disconnected
Shutoff hose clamp on the clean water hose allows on-demand water control for filling bottles; clamp also shuts off the system when not in use
Clean the system by simply holding the filtered-water container above the unfiltered-water reservoir to backflush the filter
Taste-free reservoir and silicone hoses ensure great-tasting water
Platypus GravityWorks Filter System Bottle kit weighs only 9.5 oz.

Please note: Platypus products can only be shipped to U.S. addresses.

Made in USA.

Item 849793

View all Platypus products

REI Membership

REI Membership $20.00

Platypus GravityWorks Filter System Bottle Kit - 2 Liter Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews

Platypus GravityWorks Filter System Bottle Kit - 2 Liter

4.3

(based on 3 reviews)

100%

of respondents would recommend this to a friend.

Pros

Easy to use (3)
Good quality (3)

Cons

Best Uses

Hiking (3)
Hydration packs (3)
Water bottles (3)

- Was this a gift?:
- No (3)

Reviewed by 3 customers

Sort by

Displaying reviews 1-3

May

2013

5.0

Best water filter I've used

By KessLowing

from Houghton, MI

About Me Casual/ Recreational

See all my reviews

Pros

Easy to Use
Fast
Good Quality
Improves Function

Cons

Best Uses

Canteens & Coolers
Hiking/Camping
Hydration Packs
Water Bottles

Comments about Platypus GravityWorks Filter System Bottle Kit - 2 Liter:

I just got back from my first back country use with the filter and honestly am really thrilled by it.

First, disclaimers: I've only used it once, and cannot attest to it's durability. Also, the water I filtered was mostly clear.

It's really easy to use, really fast, and well designed. I mainly used it to filter into a 1L platyplus bottle and my BigZip bladder. Both of these just require the inner portion of the bottle adapter, so I left the outer portion at home.

Something I really wasn't expecting was how it filled my bladder, even while the bladder was in a fully packed pack. To fill the bladder, I simply pulled off the bite valve and hooked up the filter (I suggest you only do this with bladders that have an on-off switch at the bite valve, otherwise it would likely be tricky to hook up)

It obviously took longer, but even with a pack bulging at the seams (had to take a much larger sleeping bag than normal) it worked.

I will say that if you're planning on hiking with more than 2 people, you should probably get the larger version and possibly buy the bottle kit separate as 2L isn't a huge amount of water, but it filters so fast that filling up the dirty reservoir again isn't a big issue at all.

I wanted to add this to my previous review but could not figure out how to edit that one.

Comment on this review

Apr

2013

4.0

Preliminary report: Looks great

By KessLowing

from Houghton, MI

About Me Casual/ Recreational

See all my reviews

Pros

Adjustable
Easy to Use
Fast
Good Quality
Lightweight

Cons

Best Uses

Canteens & Coolers
Hiking/Camping
Hydration Packs
Water Bottles

Comments about Platypus GravityWorks Filter System Bottle Kit - 2 Liter:

This is just a preliminary review as winter won't go away and I haven't been able to use it in the back-country yet.

But this is a great product. The filter is exactly the same as in the larger 4L version, so I won't focus on that.

The clean reservoir is nicely designed. The handle has a clip that allows you to easily attach it around branches, etc. which is a nice touch. Also, you can arrange the handle so you are holding the strap twice, which shortens the handle when you're just carrying it, or you can hold it so the strap is longer when you're working on filling the reservoir.

The adapter works surprisingly well. I mainly use platybottles as well as a water bladder, and the adapter works great for both. This also means I can leave the larger portion of the adapter at home, which is a nice bonus as less weight is always better.

For the bladder, you simply have to take off the bitevalve, and you can filter directly into the bladder. A standard nalgene also works fine and when I tried with my smaller 16oz nalgene, that worked great as well. For all of those bottles, it fits tightly and snugly so you didn't have to hold the hose.

The only reason I am not giving 5 stars is I haven't been able to try it with dirty water.

Quick note: the bottle adapter does have 'air relief' holes so you can use it with solid bottles. This does mean that it leaks ever so slightly when you backflush the filter. It's very easy to avoid. Nothing's wrong, it's simply a feature they had to include so solid bottles could be used with the filter.

For a bit more info on the adapter, you can click on the video. Sorry it's so quiet - it's my first video and I didn't quite know how to fix that.

Comment on this review

Apr

2013

(2 of 2 customers found this review helpful)

4.0

Good value purchase

By Robot Moose

from Norcal

About Me Avid Adventurer

See all my reviews

Pros

Easy to Use
Good Quality
Lightweight
No More Pumping

Cons

Bulky

Best Uses

Backpacking
Hiking/Camping
Hydration Packs
Water Bottles

Comments about Platypus GravityWorks Filter System Bottle Kit - 2 Liter:

I truly believe that out of all the gravity filter options Platypus offers, this is likely the best value of all three.
It's the same filter cartridge and same flow rate, but with a smaller "dirty" reservoir and a standard MSR/Nalgene style thread-on bottle mouth at the end. With a few quick mods, it's really convenient.
This is what I've done:
1. I've removed those foam ends on the filter. I fail to see what good they are, but they're not heavy, just extra bulk.
2. I've cut the 'clean' line and spliced in a Camelbak style quick-connector to make it plug into my hydration system without having to remove it from my pack
3. I've replaced the 'dirty' bag with a discarded Camelbak reservoir. It still quick-connects on, but offers a filling capacity of 2.5 liters instead of 1.5, making it just a little more useful.
4. I swapped out that stuff sack for a different, less complex one.

It's a great system, and the best of the three Platypus filters in terms of overall value. With a little tinkering, it's actually a truly useful system.