Adventure Medical Kits Ultralight Watertight .5 First Aid Kit vs Aquatabs Water Purification Tablets
Weight and specs compared for 2026 — and which one to choose.
Minimal first aid kit for 1-2 people, 1-2 days. 3.6 ounces.
Full details →30 tablets. Emergency water purification backup.
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Adventure Medical Kits Ultralight Watertight .5 First Aid Kit vs Aquatabs Water Purification Tablets: which should you buy?
If saving weight is your priority, the Aquatabs Water Purification Tablets wins — at 20 g it is 82 g (80%) lighter than the Adventure Medical Kits Ultralight Watertight .5 First Aid Kit (102 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 first aid page, or browse the full gear weight database.