Image not available$65
1 retailer
16.9oz UltraPress® Purifier
The Grayl 16.9oz UltraPress® Purifier is a 500 mL (17 fl oz) polypropylene water bottle that weighs 354 g, is 75 mm across and has a built-in filter.
- Capacity
- 500 mL (17 fl oz)
- Weight
- 0.8 lb · 354 g
- Material
- Polypropylene
- Diameter
- 75 mm (3 in)
Image not availableWhat the data says
- Heavier than most bottles its size: 76% of 37 comparable bottles weigh less.
- Weighs 708 g per liter it holds.
- 75 mm across: about as slim as a 1 L smartwater bottle, so it should slide into most backpack side pockets.
Computed from the specs below. How we write summaries.
Full specs
Last verified Oct 17, 2026
Unless marked otherwise, specs are from the manufacturer’s product page (grayl.com).
| Capacity | 500 mL (17 fl oz) |
|---|---|
| Weight (manufacturer, empty) | 0.78 lb (354 g) |
| Diameter | 75 mm (3 in) |
| Height | 248 mm (9.8 in) |
| Material | Polypropylene |
|---|---|
| BPA-free | Yes |
| Colorways | Mojave Redrock, Forest Blue, Black Camo, Olive Drab, Covert Black |
| Warranty | 10 years (workmanship and materials) |
| Carry loop | Yes |
|---|---|
| Built-in filter | Yes |
| Filter life | 150 L |
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