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MSR Guardian Purifier Pump vs MSR Thru-Link Inline Microfilter

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

MSR Thru-Link Inline Microfilter is the lighter option — 420 g lighter than the MSR Guardian Purifier Pump (86% less weight). If grams matter to you, that is the one to beat.
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Spec MSR Guardian Purifier Pump MSR Thru-Link Inline Microfilter
Weight 490 g · 0.490 kg · 1.08 lb 70 g · 0.070 kg · 0.15 lb
Brand MSR MSR
Category Hygiene Hygiene
MSR Guardian Purifier Pump
490 g

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

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MSR Thru-Link Inline Microfilter
70 g

Inline 0.2-micron hollow-fiber filter with activated carbon that integrates into hydration reservoirs for on-the-move filtering.

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MSR Guardian Purifier Pump vs MSR Thru-Link Inline Microfilter: which should you buy?

If saving weight is your priority, the MSR Thru-Link Inline Microfilter wins — at 70 g it is 420 g (86%) 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.

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