This Product
MSR Aquatabs
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Awards  Top Pick Award Best Buy Award Editors' Choice Award Top Pick Award 
Price $9.95 at REI
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$37.61 at Amazon
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$78.42 at Amazon
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$29.97 at Amazon
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$14.95 at REI
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Overall Score Sort Icon
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72
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Pros Easy to use, super packable, lightweight, cheap in comparison to other filtersEasy to use, fast flow rate, collapsible, lightweightLightweight, great price, durable design, fast flow, high volume filtration, use for cold weatherLightweight, adaptable, easy to use, lifetime guaranteeLightweight, inexpensive, kills all pathogens (including crypto), reliable
Cons More expensive then other chemical treatment, chlorinated taste, does not kill CryptoLacks durability and reliabilityDoesn't filter out viruses, no additional storage reservoirNot great for group use, better if you replace the bagsTakes a long time to kill crypto, slight taste to the water, chemical treatment
Bottom Line Lightweight and reliable, this chemical treatment is perfect for lightweight travel or emergency useA soft bottle filtration system designed for lightweight travelThe best value gravity filter on the marketThis lifetime guaranteed product is easy to use on the trailThe best chemical treatment option that will kill all pathogens when given enough time
Rating Categories MSR Aquatabs Katadyn BeFree Katadyn Gravity Camp 6L Sawyer Squeeze Water Treatment Drops
Water Quality (20%)
1
8
8
8
5
Durability & Maintenance (20%)
9
1
7
5
10
Treatment Time (15%)
2
10
8
9
2
Weight & Packability (15%)
10
10
6
7
9
Ease Of Set Up (15%)
9
9
6
7
8
Ease Of Filtration (15%)
10
9
9
8
9
Specs MSR Aquatabs Katadyn BeFree Katadyn Gravity... Sawyer Squeeze Water Treatment...
Type of Filter/Purifier Chemical treatment Squeeze & on-the-go Gravity filter Squeeze, in-line, on-the-go Chemical treatment
Time to Treat One Liter (Timed Test) 30 minutes immediate 64 seconds 40 seconds Clear Water - 20 min
Turbid Water - 35 min
Measured Weight (entire kit -- oz) 0.1 oz 2.1 oz 11.7 oz 5.7 oz 3.0 oz
Total cost per 100 L ($) $16.67 $4.00 $6.00 $0.01 $13.16
Replacement cartridge cost per 100 L ($) $16.67 $2.50 $2.67 $0.01 $13.16
# of Liters (L)/gallons (gal) per lifetime 60 L/16 gal (30 tabs) 1000 L/264 gal 1,500 L/396 gal 378,541 L/100,000 gal 114 L/30 gal per package
Filter Media or Active Ingredient Sodium dichloroisocyanurate Hollow Fiber Pleated glassfiber Hollow Fiber Chlorine Dioxide
Removes Bacteria? Yes Yes Yes Yes Yes
Removes Protozoa? (Cryptosporidium, Giardia) Yes (Only Gardia, no Crypto) Yes Yes Yes Yes
Removes Viruses'? Yes No No No Yes
Removes Chemicals? No No No No No
Removes Heavy Metals? No No No No No
Removes Particulates (sediment, microplastics)? No Yes Yes Yes No
Filter Pore Size N/A 0.1 micron 0.2 microns 0.1 micron N/A
Advertised Flow Rate N/A 2.11 L per min 2 L/min 1.7L/min N/A
Dimensions N/A 9.05 in x 2.73 in 10 x 6 x 2.4 in 11 x 6 N/A
Storage Capacity (L) 0 0.6 L 6 L 0 0
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