16.9 FL OZ ULTRAPRESS

This water bottle transformed my international vacation from spending time boiling water to the ease of filling up at any available sink or stream. It does require about a minute total of work between pulling the bottle apart, filling it up, and then pressing the filter down, but it's well worth it to not have to suck hard on a straw (which causes wrinkles around your lips). Also, you can filter your water in this bottle and then pour that into a cup or onto your toothbrush or to wash your face (which cannot be done with a straw-filter bottle.) The only way this bottle could be improved would be a way to attach the small cap so it's not misplaced or dropped (the geopress model does have a cap cord and I'm not sure why they removed that on this ultrapress model). It does not hold a ton of water (the filter takes up some space) so I also brought a second normal bottle to fill and pour into this Grayl. The grayl does leave a bit of water on the floor when you press it down (seems to come out between the seal on the bottom while pressing) so be mindful where you do this. I appreciate that this bottle is somewhat slender so it fits into my daypack's side pocket. (If the diameter is not an issue for you, consider the geopress, which holds more water, can handle a higher particulate level, doesn't have the seal issue at the bottom, and has the cap-keeper.) (grayl geopress: https://www.amazon.com/dp/B0C1JHVYKB)

Must have when travelling abroad using unknow water sources. A++++ Great for civil emergency use too :) Don't forget to stock up on the replacement filters.

A friend had one of these and I was impressed by the quality and ease of purifying water from any stream or lake. Had to get one for myself. No awful carbon taste, and it’s awesome that you can filter water and pour it into another container or add fruit infusions or flavored powders to it. No difficult straw to suck through! I only wish the screw-on cap had a tether, and I’d love to see a built-in carabiner clip added to the handle. Then it’d be perfect! That was a big miss on the design and why I docked one star. Used it for a long weekend in the Boundary Waters Canoe Area and it worked great.

The benefit of this bottle is that you know you have clean water regardless of the water source used and regardless of where you go. It is a bit tough to push the water through the filter, but i assume that is because the filter works well so if there is no solution to that then it is worth the trade-off.

Very nice bottle

Went to Pakistan. Have a water purifier test kit as well. Tap water was 588. After I put the tap watery through this two times, it only went down to 484. Safe water should register below 150. Unless I did something wrong with the filter, this is garbage. (Tested Aquafina after this and it registered at 120).

These are awesome. I travel a lot and sometimes, even hotel tap water can taste a bit off. I switched to a Grayl for my travel water bottle. Total overkill yes, but it works. I also keep one in our RV for those campsites with questionable water sources.

Worth it's weight in gold! Whenever I travel to my brother's house their water is so yucky, full of minerals smells and tastes like Sulphur:/ I drink so many bottles of water and the waste and the microplastic is the worst. This took out ALL the nasty flavor and smell. Im seriously impressed!

Sembra fatta bene, non è leggera ma la cosa importante è che filtri accuratamente. La uso durante i miei trekking ma certo ha senso averla con sé solo se si ha la possibilità di accedere a una fonte d’acqua. Per filtrare ci vuole una buona spinta e va fatto lentamente.

Suitable for long term storage of 10 years. Production date was about a year ago. Questions at the manufacturer are quickly and well answered. Filters also viruses and heavy metals.

Bought for a trip to India. Saved on buying bottled water. Used it to filter some very dodgy looking water and never had any problems.

It leaks sometimes

Brilliant was for a gift