Materials:Made from BPA-FREE polypropylene #5, food-grade silicone, TPE and ABS food-grade plastic. 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 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.

FlipCarry® handle rotates 90° for effortless separation (Inner Press from Outer ReFill) and easy carrying; provides a large pressing surface when flat. Ultra-powdered activated carbon filters particulates (sediment, microplastics) and adsorbs many chemicals, pesticides, herbicides, heavy metals, VOCs, flavors and odors. 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.

Value

Although the UltraPress requires a bit of oomph to use, it’s not at all complicated. The simplicity and speed at which you can get clean water makes the effort worth it! 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) Clean and dry the bottle between uses. Always remove the filter and clean the rest of the bottle with warm soapy water if you won’t be using it for a while. Leave the filter upside down in a warm room to dry out. It can take days for the filter to dry completely.

They’re also members of The Conservation Alliance, All Hands and Hearts, charity: water and are supporters of many more groups and organisations. Paracord D-ring loop for filling in precarious situations (foot bridges, whitewater, canyoneering, etc). The activated carbon absorbs chemicals, heavy metals, flavours and odours to ensure your water is safe and tastes fresh! 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!Multi-functional SimpleVent® drink cap vents air (by twisting cap ½ turn) during purification and filtration; protects spout from cross-contamination. Sometimes, it’s the little things. Ever find a water source off the base of a bluff or running under a bridge but still need to get water for drinking? These can be tough to get to. 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.

All of the water from the outer cup has passed through the filter and is now inside the inner core. Open that top cap and enjoy. Paracord D-Ring (Photo/Josh Kirchner) 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? 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. RiverFlow™spoutdelivers a fast-flow of clean drinking water for chugging, filling hydration reservoirs and other bottles.

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. 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.

Materials: Titanium, BPA-FREE polypropylene #5, food-grade silicone, TPE and ABS food-grade plastic. 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.

Our Verdict

Looking for an efficient water purifier but don’t want extra weight or bulk? Good news: GRAYL just slimmed down its eponymous water filter bottle into an ultralight option. 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. 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 protectionis effective on all 7 continents and empowers adventurers and travelers to drink from the world’s sketchiest water sources. Simply — Fill.Press.Drink.™ If you’re somewhere like a hostel, with no access to a dishwasher or safe tap water, you can wash the GeoPress with warm, soapy water. The washing-up liquid will remove any germs or bacteria. Allow the bottle to air dry after cleaning.