Katadyn BeFree 1.0L Water Filter vs ResQLink PLB-375

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

Katadyn BeFree 1.0L Water Filter is the lighter option — 70 g lighter than the ResQLink PLB-375 (52% less weight). If grams matter to you, that is the one to beat.

Spec	Katadyn BeFree 1.0L Water Filter	ResQLink PLB-375
Weight	65 g · 0.065 kg · 0.14 lb	135 g · 0.135 kg · 0.30 lb
Brand	Katadyn	ResQLink
Category	Safety	Safety

Katadyn BeFree 1.0L Water Filter

65 g

0.1-micron hollow fiber filter with 1L collapsible soft flask. Filters 2L per minute, removes bacteria and protozoa. Complete system including flask.

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ResQLink PLB-375

135 g

Personal Locator Beacon. Activates free search and rescue.

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Katadyn BeFree 1.0L Water Filter vs ResQLink PLB-375: which should you buy?

If saving weight is your priority, the Katadyn BeFree 1.0L Water Filter wins — at 65 g it is 70 g (52%) lighter than the ResQLink PLB-375 (135 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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