I like its design, just fill up the 1 litre sawyer bottle with water and as you drink from it it is being filtered.Very happy with my two purchases.

Hubo problemas en el reparto. Al final se tuvo que cancelar. Reembolso emitido por Amazon

If I want to rank my best camping gears, this would be the best piece without any doubt, not sure how someone could rate this product below 5 out of 5. I have had different water filters but this one is so easy to use.

good item so far, haven"t used it with really bad water yet. A little hard to draw water through the straw but you are going through a filter so thats understandable.can be a little noisey as the filter rattles around in the bottle a bit,nothing too outragouse though.overall it seems a good simple item.

Bueno para purificar agua del grifo directo.

altho it cant remove viruses and not cheap to buy in country like india, we dont hav to change filter ever, so over time, very cheap at .1 filter. Wish they build with a .02 filter also. I save on plastic water bottles, always traveling. : )

I recently received my Sawyer Products SP140 Personal Water Bottle with Filter.First the overall volume is listed at 1 liter ~ 33.8 oz. However, the actual volume of water you can put into the bottle with the filter is less than that. My initial guess was around 7-9 oz of water displacement from the filter. After a simple yet effective experiment, I determined that the actual displacement of placing the filter into the bottle is around 4 oz. With that to consider you can fill the bottle with approximately 30 oz of water. Considering the important job that the filter performs (filtering out any water borne contaminants from the water you're placing in the bottle) I'm not going to count that as a negative on the review, but I did want to state that for the record.Overall use of this product is simple. First fill the bottle up to the first neck then insert filter and screw cap on. It's not that complicated. There's almost no assembly needed, just slip the drinking tube on the cap and you're ready to go. You also get a few replacement drinking tubes. The cleaning plunger and cleaning/maintenance instructions are also included. They are simple to read and understand for any individual. This is huge because this filter is designed to last almost indefinitely with proper care and servicing. So follow these instructions closely and you'll be using this filter for a long time! I've been using it with my tap water here in Bryan, TX. We are known for not very good tasting tap water as most municipalities are. The filter does make the water much more palatable which completely negates my need for a Brita, Pur, ZeroWater or similar home water filter unit saving me much needed funds. I've been using this water bottle non-stop without cleaning or servicing with tap water for over a week and I have not had any issues with flow.Now for your B.O.B. (Bug Out Bag), personal survival kit, home disaster kit needs:First this bottle can provide a good amount of water for one or two persons comfortably on a daily basis. The negative space inside the bottle can provide additional storage of small items that you need to keep secure and dry such as: matches, batteries, water purification tablets, additional medical kit items like bandages, etc, lighters, fire steel rods/magnesium fire starter blocks, tinder, note taking or journal making items, printed materials like maps or basic instructions for shelters, etc. So you can see that this item would make a great addition to your B.O.B., etcKEEP IN MIND THAT THIS FILTER IS A BIOLOGICAL WATER FILTER ONLY! IT IS NOT DESIGNED TO FILTER OUT ANY NUCLEAR OR CHEMICAL COMPOUND CONTAMINANTS, ESPECIALLY COMPOUNDS THAT ARE WATER SOLUBLE! This filter will only filter out biological water contaminants and well as solid particulates. The solid particulates in the water WILL CLOG this filter. The 0.1 micron rated filter will clog if large particles are present in the water prior to drinking. So if you are filling this with "river water" for example, you will not get the clean water you think you are getting. So use a little common sense. If you are not equipped to 'pre-filter' your water, or treat the water for nuclear or chemical compounds (If you suspect that they are present) then you're going to lose the battle with dehydration. If you do not understand what I'm saying then get online and research the topic ASAP. With that being said, this filter has high ratings and Sawyer Products is one company that I would trust with my future health and survival.I hope this review was helpful and insightful, please feel free to comment with any additional info, questions, etc.