MSR Guardian Pump Replacement Cartridge

Marsoni

M251S

$119.97

Get it in 3 business days with 1 day shipping. Friday, May 29

MSR Guardian Pump Replacement CartridgeThis replacement filter cartridge restores your Guardian Purifiers flow rate, and lasts up to 10,000+ liters. Removes viruses, bacteria, protozoa, and particulates, like dirt and sediment.

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Your MSR Guardian Pump Replacement Cartridge orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

It is okay, but the brushes fall through the holes' making them hard to retrieve. The only way to get them out of the holder is to pull up on the bristles or push the handle from the bottom. Both don't work well. My solution is simple, just install a "stop" below the holes. My solution is ugly but works. It took me about 15 minutes to modify.

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Reviewed in the United States on April 4, 2026

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Awesome quality, they stay on your feet while you’re running hard, I mean on your ankles great socks 🧦

Dallas, US

★★★★★ 5

Quality and design 👍

Size: 7.125 x 2.875, Color: Brushed Metal

Fit great in our kitchen sink, good quality , very good design.

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Reviewed in the United States on May 9, 2026

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