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. The electro-adsorptive media acts like a magnet to pull pathogens and other contaminants out of the water. The process of adsorption, not to be confused with absorption, involves these pathogens and contaminants becoming permanently bonded to the adsorptive media and removed from your water. Grayl purifiers rely on multiple layers of filtration technology! They’re also members of The Conservation Alliance, All Hands and Hearts, charity: water and are supporters of many more groups and organisations. RiverFlow® spout delivers a fast-flow of clean drinking water for chugging, filling hydration reservoirs and other bottles. 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!

You get long-lasting performance from the Grayl UltraPress, too – the filter is designed to last for 300 uses, although this depends on the number of contaminants in your water source. Award winning OnePress® global filtration and purification is effective for use on all 7 continents and empowers adventurers to drink from the world’s sketchiest freshwater. Even if you don’t use the Grayl UltraPress regularly, you should still change the filter after three years, when it reaches the end of its shelf life. Using the filter after this time may prove ineffective.

Conclusion

Heat it up! Utilizing the butterfly handles, the Outer Ti Cup can be used to heat water and cook food alongside hot coals or near a direct flame. Can also be used with the Grayl titanium camp stove. RiverFlow™spoutdelivers a fast-flow of clean drinking water for chugging, filling hydration reservoirs and other bottles. Testing Standards: Independently tested by a certified laboratory to meet or exceed NSF/ANSI protocols 42 and 53 for sediment, pathogen and chemical removal; meets the EPA Guide Standard and Protocol for testing microbiological water purifiers.

FlipCarry™handlerotates 90° for effortless separation (Inner Press from Outer ReFill) and easy carrying; provides a large pressing surface when flat. Ultra-powdered activated carbonfiltersparticulates (sediment, microplastics) and adsorbs many chemicals, pesticides, herbicides, heavy metals, VOCs, flavors and odors.Durability: CP4 Grade 1 titanium offers unparalleled strength to weight ratio and withstands 6 ft drops (full of water) onto concrete. If you have access to a dishwasher, most of the Grayl UltraPress is dishwasher safe. The filter isn’t suitable for the dishwasher, so make sure you remove it first. In testing both purifiers, I didn’t notice a huge difference in speed. I tried each filter multiple times, from a fairly clean source and then a less clean source. I also found that the smaller surface of the Ultrapress didn’t mean it was harder to filter — the flat surface of the top might even be easier to grip. The top of the Geopress feels more clunky to me.

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. One of the real gems here is the GRAYL press-to-purify technology. It makes filtering water super fast and easy. All you have to do is pull the inner core/filter out of the cup.The GeoPress can purify 700ml of water in around 8 seconds when the bottle is new. The UltraPress takes close to 10 seconds to purify 500ml of water. Over time, both bottles will slow as the filters begin to clog up. When it takes around 25 seconds to purify one bottle’s worth of water, it’s time to replace the filter. Ultra-powdered activated carbon filters particulates (sediment, microplastics) and adsorbs many chemicals, pesticides, herbicides, heavy metals, VOCs, flavors and odors. 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. For the first few mornings, I simply used the outer cup as my coffee cup. The butterfly handle felt great in my hand and the cup did an awesome job of keeping my coffee warm. While that’s all well and good, I was really curious about how the filter would handle the heavy runoff water beneath our camp. (Photo/Josh Kirchner)

Multi-functional SimpleVent® drink cap vents air (by twisting cap ½ turn) during purification and filtration; protects spout from cross-contamination.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. 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 FlipCarry® handle rotates 90° for effortless separation (Inner Press from Outer ReFill) and easy carrying; provides a large pressing surface when flat.