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Acme Tornado 636 vs Sawyer Squeeze SP131
Weight and specs compared for 2026 — and which one to choose.
Acme Tornado 636 is the lighter option — 73 g lighter than the Sawyer Squeeze SP131 (86% less weight). If grams matter to you, that is the one to beat.
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.
Check price Full details →Acme Tornado 636 vs Sawyer Squeeze SP131: which should you buy?
If saving weight is your priority, the Acme Tornado 636 wins — at 12 g it is 73 g (86%) 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.