GRAYL Ultrapress Waterfilter Purifier

Clean, safe drinking water from virtually any freshwater source, in just ten seconds? The Grayl UltraPress is a compact water purifier in the form of a 500 millilitre filter bottle that works on a simple principle: fill, press, drink. For travellers, bushcrafters, hikers and anyone building an emergency supply, a reliable water purifier is vital. You fill the outer bottle with water from a stream, river, lake or tap, press the inner cartridge down and drink purified water straight away. With no installation, no waiting time and no fuss, the Grayl UltraPress is ready to use wherever you are.

The award-winning OnePress purification removes all pathogens in the water, including viruses (for example rotavirus, hepatitis A and norovirus), bacteria (such as E. coli, cholera, salmonella and dysentery) and protozoa (such as Giardia, Cryptosporidium and amoebas). The ultra-powdered activated carbon filters particles such as sediment and microplastics, and also adsorbs many chemicals, pesticides, herbicides, heavy metals, VOCs and unpleasant tastes and odours. The filter has been independently tested and meets or exceeds NSF/ANSI protocols 42 and 53, as well as the EPA guide standard for microbiological water purifiers. That way you drink with confidence from the world's toughest water sources.

The UltraPress is packed with clever details that make it comfortable and versatile to use. The RiverFlow spout delivers a fast stream of clean water for drinking or for filling hydration reservoirs and other bottles. The FlipCarry handle rotates 90 degrees, so you effortlessly separate the Inner Press from the Outer ReFill and carry the bottle easily, while lying flat it provides a large pressing surface. The SimpleVent drinking cap vents air during purification and protects the spout from cross-contamination, and the SoftPress comfort pad ensures non-slip, fatigue-free pressing. The TPE TopoGrip on all surfaces gives tactile grip, even with heavy use.

Travelling to areas with unreliable drinking water, heading into the wilderness or building an emergency kit? Then the Grayl UltraPress is an investment that pays for itself time and again. At a weight of 354 grams, a height of 24.77 centimetres and a capacity of 500 millilitres, the bottle fits in virtually any cup holder or backpack pocket. Choose the Grayl UltraPress and drink with confidence wherever your adventure takes you.

Key Features

• Produces clean, purified drinking water in 10 seconds: fill, press, drink
• Removes viruses, bacteria and protozoa from the water
• Filters particles such as sediment and microplastics
• Ultra-powdered activated carbon adsorbs chemicals, pesticides, herbicides, heavy metals and VOCs
• Reduces unpleasant tastes and odours for fresher water
• RiverFlow spout for quickly filling bottles and hydration reservoirs
• FlipCarry handle rotates 90° for easy separation and carrying
• SimpleVent drinking cap vents air and protects against cross-contamination
• SoftPress comfort pad and TPE TopoGrip for non-slip, comfortable pressing
• Independently tested to NSF/ANSI 42 and 53 and the EPA guide standard

Product Specifications

• Brand: Grayl
• Model: UltraPress
• Capacity: 500 millilitres
• Weight: 354 grams
• Height: 24.77 centimetres
• Diameter at the base: 7.5 centimetres
• Materials: BPA-free polypropylene #5, food-safe silicone, TPE and food-safe ABS
• Active technology: ion exchange and ultra-powdered activated carbon
• Flow rate: 3 litres per minute (10 seconds per fill)
• Removes: 99.99% of viruses, 99.9999% of bacteria and 99.9% of protozoan cysts
• Cartridge lifespan: 300 presses (approximately 150 litres) or 3 years after first use
• Cartridge shelf life: 10 years unopened, at least 3 years after use
• Test standards: NSF/ANSI 42 and 53, EPA guide standard
• Warranty: 10 years against manufacturing defects and materials

Frequently Asked Questions (FAQ)

How does the Grayl UltraPress work?
You fill the outer bottle with unpurified water, insert the inner cartridge and press it down. In around ten seconds, you press the water through the purification cartridge, after which you have clean, purified drinking water straight away. The principle is simple: fill, press, drink, with no installation or waiting time.

Which contaminants does the UltraPress remove?
The UltraPress removes pathogens such as viruses (for example rotavirus, hepatitis A and norovirus), bacteria (such as E. coli, cholera and salmonella) and protozoa (such as Giardia and Cryptosporidium). In addition, the ultra-powdered activated carbon filters particles such as sediment and microplastics and adsorbs many chemicals, pesticides, herbicides, heavy metals and VOCs. Unpleasant tastes and odours are also reduced.

Does this bottle also filter viruses?
Yes, unlike many simple filter straws, the Grayl UltraPress also removes viruses from the water, up to 99.99%. That makes the bottle suitable for use when travelling to areas where viral contamination of drinking water is a real risk. It thus provides a broad level of protection against biological and chemical contaminants.

What can I do if the water is very cloudy?
If the water you are filtering is very cloudy, there are many loose particles suspended in it that can clog the filter more quickly. In that case, we recommend stretching a handkerchief or similar cloth over the scoop bottle while filling, so that the coarse debris is partly held back already. That way the filter cartridge lasts as long as possible.

How long does the filter cartridge last?
The purification cartridge lasts around 300 presses, which equals approximately 150 litres of water, or three years after first use. Once the "press time" rises to around 25 seconds, or three years have passed since first use, it is time to replace the cartridge. That way you always know when replacement is needed.

How long does an unused cartridge keep?
An unopened purification cartridge keeps for up to 10 years when stored correctly, which makes the UltraPress suitable for an emergency kit or long-term storage. Once a cartridge has been put into use, it lasts at least another 3 years, provided it is well maintained between uses. Store the cartridge dry and according to the storage instructions.

How do I clean and store the UltraPress?
Wash all parts regularly by hand; do not put them in the dishwasher and do not clean the cartridge with soap or cleaning agents. For long-term storage, perform a dry press, pour out the excess water, remove the cartridge and let it air dry (2 to 4 days, depending on humidity). Then reassemble the device to seal it airtight for storage.

What warranty comes with the Grayl UltraPress?
The Grayl UltraPress comes with a ten-year warranty against manufacturing defects and materials. The bottle has also been independently tested to NSF/ANSI protocols 42 and 53 and meets the EPA guide standard for microbiological water purifiers. That way you know both the quality and the performance are independently assured.

How quickly will my order be shipped?
Orders placed on business days before 5:00 PM are shipped the same day. That means your water purifier arrives quickly and you can head out without delay. Handy when you want to complete your kit just before a journey or trip.