Katadyn BeFree 1.0L vs Sawyer Squeeze SP131

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

Katadyn BeFree 1.0L is the lighter option — 28 g lighter than the Sawyer Squeeze SP131 (33% less weight). If grams matter to you, that is the one to beat.

Spec	Katadyn BeFree 1.0L	Sawyer Squeeze SP131
Weight	57 g · 0.057 kg · 0.13 lb	85 g · 0.085 kg · 0.19 lb
Brand	Katadyn	Sawyer
Category	Safety	Safety

Katadyn BeFree 1.0L

57 g

Flow-optimized 0.1-micron EZ-Clean hollow fiber filter integrated with 1L soft flask. Delivers 2L per minute filtration without pumping.

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Sawyer Squeeze SP131

85 g

0.1-micron squeeze water filter removing 99.99999% of bacteria and 99.9999% of protozoa. Includes three BPA-free pouches.

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Katadyn BeFree 1.0L vs Sawyer Squeeze SP131: which should you buy?

If saving weight is your priority, the Katadyn BeFree 1.0L wins — at 57 g it is 28 g (33%) lighter than the Sawyer Squeeze SP131 (85 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 safety page, or browse the full gear weight database.

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