Grayl Geopress Water Purifier
Unrivaled Ease, Speed & Convenience. No other portable purifier rivals the speed, simplicity and effectiveness of GEOPRESS. In eight seconds, it makes 24 ounces (710 ml) of safe, clean drinking water – anywhere in the world. Effective on all seven continents, you can tap into the world’s water sources and safely drink from sketchy spigots, hotel sinks, murky rivers, wells or lakes. GEOPRESS protects from global waterborne pathogens (virus, bacteria, protozoan cysts), pesticides, chemicals, heavy metals, and even microplastics.
- Unrivaled ease, speed and versatility — simply Fill. Press. Drink™
- OnePress™ Global Protection empowers travelers, adventurers and survivalists to make the world’s sketchiest water sources safe
- Removes waterborne pathogens (viruses, bacteria, protozoan cysts), including Rotavirus, Hepatitis A, Norovirus, Giardiasis, Cryptosporidium, E. Coli, Cholera, Salmonella, Dysentery and more
- Filters: particulates (sediment, microplastics) and many chemicals, pesticides, and heavy metals
- Improves taste, smell and clarity
- Virtually no setup time, and fastest performance:purifies and filters contaminated water in 8 seconds (5 liters per minute)
- SimpleVent™ Drink Cap performs three functions:
- vents air while purifying
- protects against cross contamination, grime, and dirt
- allows one-handed hydration through fast-flow drink spout
- SoftPress™ ergonomic comfort pads for non-slip, anti-fatigued pressing
- TopoGrip™ non-slip TPE placed on all heavy use surfaces
- Saves money and waste; travel sustainably and never buy single-use bottled water again
- Capacity: 24 oz (710 ml)
- Weight: 15.9 oz (450 g)
- Height: 10.4" (26.5 cm)
- Diameter (at base): 3.4" (8.6 cm)
- Active Technology: ion exchange, ultra-powdered activated carbon
- Fast Flow Rate: 8 seconds per 24oz (5 liters/minute)
- Removes: waterborne pathogens (99.99% of viruses, 99.9999% of bacteria, 99.99% of protozoan cysts), including Rotavirus, Hepatitis A, Norovirus, Giardiasis, Cryptosporidium, E. Coli, Cholera, Salmonella, Dysentery and more
- Filters: particulates (i.e. silt, microplastics, etc.); activated carbon effectively adsorbs chemicals, pesticides, heavy metals, flavors, and odors
- Durability: built tough to perform in harsh conditions and withstand 10 ft drops (full of water) onto concrete
- Cartridge lifespan: rated for 350 cycles (65 gal. / 250L), as “press time” reaches ~25 seconds (or three years have elapsed since first use) it’s time to replace your purifier cartridge
- Cartridge shelf life: stored under proper conditions, an unused (and airtight) purifier cartridge has a shelf life of 10 years
- BPA-Free materials: made from polypropylene #5, food-grade silicone, TPE, ABS food-grade plastic
- Testing standards: independently tested by a certified laboratory to meet or exceed NSF protocol 42 and 53 for pathogen and chemical removal; meets the EPA Guide Standard and Protocol for testing microbiological water purifiers
- Origin: Designed in United States; Geopress made in China, purifier cartridge media made in United States
I have been using the Sawyer mini filter for quite a while and found it a good product, though sometimes a little frustrating to use. Having bought the Grayl Geopress recently the Sawyer is now relegated to bottom of the rucksack backup status.
The Geopress is a superior product in all respects bar one, which I will mention at the end.
Build quality is exemplary. Though a moderately heavy product by water bottle standards, the ability to refill from any freshwater source means no more lugging excess water everywhere. This feels like a bottle that will still be going strong in. 10 years time.
In use this is simplicity itself. Remove inner container, fill to line, reinsert inner and press. Job done. But read the instructions (I know, not very manly) as they contain some useful info on the best technique for using this purifier.
At home (1st use) this bottle completely removed the chlorine smell and taste from tap water. Eager to see if it works outdoors I went to a pond in the local woods. Some very sorry looking water went into the outer container and some very acceptable water came out of the spout.
In use I will continue to use a Millbank bag to prefilter pond or other murky water sources, mainly to help preserve filter life, but clear water can go straight through it.
The one advantage the Sawyer has is filter life. With proper maintenance the Sawyer goes on indefinitely. The Geopress filter is rated for approx 250 litres and costs around £25 a time. That still makes it only 10 pence per litre, which is significantly cheaper than bottled water and much more convenient.