Materials: Made from BPA-FREE polypropylene #5, food-grade silicone, TPE and ABS food-grade plastic. If you know you’ll have frequent water sources, why not carry a lighter bottle? In our opinion, a filter bottle should never be your only water storage, as you should carry another bottle or bladder for storing purified water. UltraPress now has a boost! All bottles ship with a One-Way Valve pre-installed making it possible to add electrolytes, drink mixes and other flavored liquids directly into an UltraPress. The filter lasts around 150 litres or 300 presses. However, if you’re purifying very dirty or silty water, the lifespan will be reduced. As you use the Grayl bottle, you’ll notice the press time (the time that the purification process takes) going up. When this reaches around 30 seconds, it’s time to replace the filter.

For context, I had the cap on, and I opened it half a turn to vent air. I was using the filter press on a surface about hip-high. It may have been faster if I had pressed down on the ground. So filter times may vary depending on your method. I found that with the Ultralight, after a while the press became very difficult to press, especially with the sort of awkward design of the lid. Grayl made an improvement here in a big way. The UltraPress cap is wider so your palms can use a flat pad to press down without the top lid digging into your hand. We’ve used our UltraPress purifier bottles extensively, purifying hundreds of litres of water that would otherwise have been undrinkable. From tap water in South America to flowing rivers in the Scottish Highlands and stagnant ponds in Europe, when things really got desperate, the UltraPress bottles have kept us hydrated and allowed us to reduce our plastic footprint while on the road!To reduce the frequency of filter changes, the manufacturer recommends pre-filtering dirty or cloudy water in a t-shirt before filling the bottle. This will remove sediment and dirt.

Award winning OnePress® global protection is effective on all 7 continents and empowers adventurers and travelers to drink from the world’s sketchiest freshwater sources. Simply — Fill. Press. Drink.®

The FlipCarryâ„¢ handle found on the UltraPress adds a shit ton of tech to the cap. Why? The FlipCarryâ„¢ handled provides an enlarged pressing surface when flat; rotates 90° for effortless separation and easy carrying. May not sound like a big deal but it is. Multi-functional SimpleVent™drink cap vents air (by twisting cap ½ turn) during purification and filtration; protects spout from cross-contamination.

The other slight differences are in the design. The Ultrapress dropped the cap leash for weight reasons, and it has a slightly smaller (albeit 90-degree adjustable) carry handle. Testing the GRAYL Geopress vs. Ultrapress Ultra-powdered activated carbonfiltersparticulates (sediment, microplastics) and adsorbs many chemicals, pesticides, herbicides, heavy metals, VOCs, flavors and odors. The activated carbon absorbs chemicals, heavy metals, flavours and odours to ensure your water is safe and tastes fresh! Assembling the bottle is easy because there are only two parts: the bottle and the lid (which is connected to the filter). Simply press the filter into the bottle and screw the lid in place. You can’t really ‘extend’ the lifespan of your Grayl filters but you can make sure they reach the150L mark before they need to be replaced. These top tips will help you get the most out of your filters and apply for any water bottle with a filter, not just Grayl bottles!Durability: built tough to perform in harsh conditions and withstands 10 ft drops (full of water) onto concrete. My previous experience at this water source always provided yellow water (even after passing through a filter) and a gritty taste. I’m happy to say that the Titanium UltraPress did a fantastic job at not only giving me clean water but improving the taste. I’m not sure how they did that, but it dang sure worked. And it was easy to press the water through. That was a concern of mine going into this. The 10-second claim is accurate and not taxing in the least. What’s Wrong?

It’s also worth noting that the slimmer filter on the UltraPress has a slightly different attachment mechanism to the GeoPress filter. It’s not just a matter of screwing it into place – or unscrewing it to remove it. There’s also a small plastic tab that you need to pry open before it will unscrew. And you’ll need to ensure that the tab is clipped into place correctly when screwing the filter on. It’s fiddly but that’s a small price to pay for safe, clean water! Compact and ridiculously easy-to-use requires zero setup and makes clean purified drinking water in 10 seconds (3L/min).Award winning OnePress™ global protectionis effective on all 7 continents and empowers adventurers and travelers to drink from the world’s sketchiest water sources. Simply — Fill.Press.Drink.™ I’ve tested each one, but I spent an extra month testing them side by side to see how they compare and which might be the better purifier overall. GRAYL Geopress vs. Ultrapress: What’s the Difference? Filters: particulates (i.e. silt, microplastics, etc.); activated carbon effectively adsorbs chemicals, pesticides, heavy metals, flavors, and odors