GRAYL UltraPress 16.9 oz
Grayl
16.9 oz press purifier rated for 99.99% viruses whose cartridge keeps 10 years unopened.
GRAYL UltraPress 16.9 oz costs $89.95 in GRAYL's own US store, checked on October 6, 2026.
Where to buy in
Price in the maker's own store, checked October 6, 2026. Amazon prices change often, so we link without a price.
What you get
The smaller Grayl press bottle at 12.5 oz with the same virus, bacteria and cyst ratings. The cartridge is rated for 300 presses or three years in use and 10 years unopened. Flow is rated at 3 L a minute.
- Unopened cartridge shelf life 10 years
- Lighter than GeoPress
- Cartridge $24.95
Pros and cons of the GRAYL UltraPress 16.9 oz
Pros
- Unopened cartridge shelf life of 10 years suits a kit that sits for years.
- Rated at 99.99% viruses along with bacteria and cysts.
- Weighs 12.5 oz which the maker says is lighter than the GeoPress.
Cons
- Rated for 300 presses of 500 ml so cartridge changes come sooner than with the filters here.
Specs
- Type
- press purifier bottle
- Filter lifemaker's rating
- 300 presses (150 L / 40 gal) or 3 years
- Removes
- 99.99% viruses, 99.9999% bacteria, 99.9% protozoan cysts
- Capacity
- 16.9 fl oz (500 ml)
- Weight
- 12.5 oz (354 g)
- Shelf lifemaker's claim
- 10 years
Why it scores 8.0
8.0/10
Shortlist score. How it is calculated
Emergency features
- Removes bacteria and protozoa
- Also removes or kills viruses
- Filter life or capacity listed by the maker
- Tested to a named standard
- Works without power
Tester picks
No pick by the testing outlets we track.
Search demand
Number 9 of 20 on this shortlist for Google searches by model name.
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Sources
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