GRAYL GeoPress 24 oz Water Purifier Bottle - Filter for Hiking, Camping, Survival, Travel (Bali Blue)

I bought this for a trip to Sri Lanka, just as a bit of insurance against stomach-upsets. It worked really well, though as others have said, it requires quite a bit of pressure to push it down. It's bigger than a standard water bottle, but obviously due to the filter and outer sleeve holds a bit less than you would expect. It's robust and looks good, and either fits in your backpack or can be attached to outside with the lug for portability. Obviously it's not possible for me to corroborate the safety and health benefits other than to say that I didn't have any illness at all while I was away. When home I cleaned and dried it thoroughly ready for our next trip. A reassuring purchase.

Great bit of kit excellent filtration

Hard to press down. Bit difficult but water is good though. Tested with water strips.

Well made, easy to use. We bought this for travel - not for backpacking (it is pretty heavy). We have been using it for tap water in countries where it is not safe to drink. The design makes it very easy to use and the separation between dirty water and clean water works well. The quantity of water produced is good and given it takes less than a minute it is very practical. The filter is easy to fit and remove and has lasted us so far. I can only say we have not got sick as to its effectiveness. There is some chlorine in some of tap water and this has removed the taste. It is not cheap but I think it is certainly worth the money.

Hasta ahora todo bien, es simplemente magnífico por sus cualidades, pero muy caro, los repuestos caros y muy pesado..