Katadyn BeFree 1.0L Water Filter vs Katadyn BeFree AC Water Filter

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

Both weigh the same at 65 g, so choose on features, price and fit.

Spec	Katadyn BeFree 1.0L Water Filter	Katadyn BeFree AC Water Filter
Weight	65 g · 0.065 kg · 0.14 lb	65 g · 0.065 kg · 0.14 lb
Brand	Katadyn	Katadyn
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.

Check price Full details →

Katadyn BeFree AC Water Filter

65 g

0.1-micron hollow fiber filter integrated into a collapsible soft flask. 1,000L lifespan, fast flow rate. New AC version adds activated carbon filtration for im...

Check price Full details →

Katadyn BeFree 1.0L Water Filter vs Katadyn BeFree AC Water Filter: which should you buy?

On weight these two are identical (65 g), so your decision comes down to features, fit and price. Check the full details and current price for each above.

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

More safety comparisons

Katadyn BeFree 1.0L Water Filter vs Fox 40 Micro Whistle Katadyn BeFree 1.0L Water Filter vs Acme Tornado 636 Katadyn BeFree 1.0L Water Filter vs Black Diamond Oz Screwgate Carabiner Katadyn BeFree 1.0L Water Filter vs Sawyer Squeeze Mini Water Filter Katadyn BeFree 1.0L Water Filter vs Katadyn BeFree 1.0L Katadyn BeFree 1.0L Water Filter vs Platypus QuickDraw Microfilter