Grayl GeoPress Purifier vs Grayl UltraPress Purifier

Weight and specs compared for 2026 — and which one to choose.

Grayl UltraPress Purifier is the lighter option — 141 g lighter than the Grayl GeoPress Purifier (31% less weight). If grams matter to you, that is the one to beat.

Spec	Grayl GeoPress Purifier	Grayl UltraPress Purifier
Weight	450 g · 0.450 kg · 0.99 lb	309 g · 0.309 kg · 0.68 lb
Brand	Grayl	Grayl
Category	Hygiene	Hygiene

Grayl GeoPress Purifier

450 g

Press-style 24oz bottle that purifies virus, bacteria and protozoa from any freshwater source in about eight seconds.

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Grayl UltraPress Purifier

309 g

Press-style 16.9oz bottle purifier using electroadsorption and activated carbon; removes viruses, bacteria and protozoa.

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Grayl GeoPress Purifier vs Grayl UltraPress Purifier: which should you buy?

If saving weight is your priority, the Grayl UltraPress Purifier wins — at 309 g it is 141 g (31%) lighter than the Grayl GeoPress Purifier (450 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.

See where both rank against everything else in this category on the lightest hygiene page, or browse the full gear weight database.

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