GRAYL GeoPress Water Purifier Bottle 24 oz
- 24 fl oz capacity, purifies in 8 seconds
- Electroadsorption and activated carbon purification
- 5 liters per minute maximum flow rate
- 15.9 oz, 3.4 x 3.4 x 10.4 inches
- 500 ppm maximum TDS, 10 year warranty
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A press-style purifier bottle that lists protection against viruses, protozoa and bacteria, with fast flow and a long warranty. It still has a limit on dissolved solids.
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ASIN: B0C1JHYF1CCategory: Canteens & Water Containers
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Overview
Not a simple filter bottle, the GeoPress is a manual press purifier: users fill the outer cup, push the inner press down and drink. Electroadsorption and activated carbon do the cleaning, and the listing names viruses, protozoa and bacteria.
The reason to look is the listed virus protection and the fast press action for travel or backcountry water. The limitation is the TDS ceiling and the effort of a manual press.
Who it's for
Hikers, campers and international travelers who need virus protection from untreated water can carry it. Anyone drawing from salty or very mineral-heavy water, or wanting a lighter bottle, should look elsewhere.
Pros and cons
- Listed virus protection
- Fast flow rate
- Long shelf life
- Ten year warranty
- TDS ceiling applies
- Press action needs effort
- Cartridge life not listed
Performance notes
Pressing the inner cup pushes water through the purifier cartridge, so flow depends on how hard and how fast the user presses. Electroadsorption captures microbes, and activated carbon cuts taste and odor. The listing gives no cartridge life in liters, so replacement timing is unknown.
Where it stands among canteens & water containers
- #5 most-searched brand and model of the 25 canteens & water containers lines we track (by search demand, not sales).
From the specs of the 53 canteens & water containers we list; not a test result.
Specifications
| Brand | Grayl |
|---|---|
| Dimensions & fit | |
| Item weight | 15.9 ounces |
| Item Dimensions L x W x H | 3.4 x 3.4 x 10.4 inches |
| Capacity & performance | |
| Capacity | 24 fluid ounces |
| Maximum flow rate | 5 liters per minute |
| Power & efficiency | |
| Power Source | Manual |
| Construction & materials | |
| Material Type | Polypropylene #5 |
| Product Shelf Life | 10 years |
| Included components | |
| Included Components | Cap, inner press, outer cup, purifier cartridge, one-way drink mix valve |
| Warranty & support | |
| Warranty Description | 10 year, authorized retailers |
| Supported Water TDS Level Maximum PPM | 500 ppm |
| Other details | |
| Purification Method | Electroadsorption, activated carbon |
Frequently asked questions
What is in the GRAYL GeoPress box?
The cap, inner press, outer cup, purifier cartridge and a one-way drink mix valve.
What does the GeoPress protect against?
The listing names viruses (rotavirus, norovirus, hepatitis A), protozoa and bacteria.
Can it purify salt water?
No. The supported water TDS maximum is 500 ppm.
How is the GeoPress powered?
It is manual: no battery or pump is used.