MSR Guardian Purifier Pump vs Sea to Summit Trek and Travel Liquid Hand Wash

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

Sea to Summit Trek and Travel Liquid Hand Wash is the lighter option — 400 g lighter than the MSR Guardian Purifier Pump (82% less weight). If grams matter to you, that is the one to beat.

Spec	MSR Guardian Purifier Pump	Sea to Summit Trek and Travel Liquid Hand Wash
Weight	490 g · 0.490 kg · 1.08 lb	90 g · 0.090 kg · 0.20 lb
Brand	MSR	Sea to Summit
Category	Hygiene	Hygiene

MSR Guardian Purifier Pump

490 g

Military-grade water purifier removes viruses, bacteria and protozoa.

Full details →

Sea to Summit Trek and Travel Liquid Hand Wash

90 g

Concentrated liquid hand wash. 89ml biodegradable formula.

Full details →

MSR Guardian Purifier Pump vs Sea to Summit Trek and Travel Liquid Hand Wash: which should you buy?

If saving weight is your priority, the Sea to Summit Trek and Travel Liquid Hand Wash wins — at 90 g it is 400 g (82%) lighter than the MSR Guardian Purifier Pump (490 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 hygiene page, or browse the full gear weight database.

More hygiene comparisons

MSR Guardian Purifier Pump vs PackTowl UltraLite Face Towel MSR Guardian Purifier Pump vs CNOC Vecto 3L Water Container MSR Guardian Purifier Pump vs Sawyer Mini Water Filter MSR Guardian Purifier Pump vs Katadyn BeFree 1L MSR Guardian Purifier Pump vs Sawyer Squeeze Filter MSR Guardian Purifier Pump vs SteriPen Adventurer Opti