MSR Guardian pump assembly shown in field-ready setup for rugged environments.
MSR Guardian pump in action demonstrating fast backcountry water purification.
MSR Guardian purifier technology highlights removal of viruses, bacteria, and protozoa.
MSR Guardian rapid-flow filtration at 2.5 LPM enables quick hydration.
MSR Guardian filter-life up to 10,000 liters for extended trips.
MSR Guardian self-cleaning mechanism maintains steady flow and reduces maintenance.
MSR Guardian PFAS-free storage bag protecting gear while staying eco-friendly.
MSR Guardian compact dimensions fit easily into small packs.
MSR Guardian made-in-USA badge signaling durable, reliable field equipment.
MSR Guardian pump assembly shown in field-ready setup for rugged environments.
MSR Guardian pump in action demonstrating fast backcountry water purification.
MSR Guardian purifier technology highlights removal of viruses, bacteria, and protozoa.
MSR Guardian rapid-flow filtration at 2.5 LPM enables quick hydration.
MSR Guardian filter-life up to 10,000 liters for extended trips.
MSR Guardian self-cleaning mechanism maintains steady flow and reduces maintenance.
MSR Guardian PFAS-free storage bag protecting gear while staying eco-friendly.
MSR Guardian compact dimensions fit easily into small packs.
MSR Guardian made-in-USA badge signaling durable, reliable field equipment.

MSR Guardian Water Purifier Pump – Backcountry, Travel & Emergency Prep

Overview The MSR Guardian Water Purifier Pump is a field-ready filtration solution designed for the harshest environments. Born from U.S....
Vendor: MSR
$783.87
$783.87
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MSR Guardian pump assembly shown in field-ready setup for rugged environments.

MSR Guardian Water Purifier Pump – Backcountry, Travel & Emergency Prep

$783.87
MSR Guardian pump assembly shown in field-ready setup for rugged environments.
MSR Guardian pump in action demonstrating fast backcountry water purification.
MSR Guardian purifier technology highlights removal of viruses, bacteria, and protozoa.
MSR Guardian rapid-flow filtration at 2.5 LPM enables quick hydration.
MSR Guardian filter-life up to 10,000 liters for extended trips.
MSR Guardian self-cleaning mechanism maintains steady flow and reduces maintenance.
MSR Guardian PFAS-free storage bag protecting gear while staying eco-friendly.
MSR Guardian compact dimensions fit easily into small packs.
MSR Guardian made-in-USA badge signaling durable, reliable field equipment.

MSR Guardian Water Purifier Pump – Backcountry, Travel & Emergency Prep

$783.87
Description
Description
x

Overview

The MSR Guardian Water Purifier Pump is a field-ready filtration solution designed for the harshest environments. Born from U.S. Military testing and refined for civilian explorers, it blends compact design with rugged reliability. When you’re in remote terrain or dealing with uncertain water sources, you can rely on its ability to deliver crisp, refreshing water and steady performance under challenging conditions.

Filtration capabilities

  • Removes viruses, bacteria, protozoa, and particulates from water sources worldwide, using advanced, medical-grade filtration fibers.
  • Pumps up to 2.5 liters per minute and can treat up to 10,000 liters over the life of the filter, depending on conditions.

Standards and performance

  • Meets NSF protocol P248 testing, delivering confidence in filtration performance in demanding environments.
  • Self-cleaning with every stroke helps maintain a fast, consistent flow—no backflushing or cartridge scrubbing required.

Durability and environmental considerations

  • Built to withstand freezing temperatures, drops, heavy use, and harsh environments—designed for field reliability.
  • Storage bag uses a PFAS-free DWR coating to protect gear and reduce environmental impact.

Specs and what’s included

  • Compact size: 8.2 x 4.7 inches; weight: 17.3 ounces; storage bag included; manufacturer’s 3-year warranty.
  • Made in the USA, reflecting a commitment to quality and domestic manufacturing.

Ideal use cases

Perfect for wilderness expeditions, backcountry travel, global journeys, and emergency preparedness kits. The Guardian offers a practical option when water quality is uncertain, helping you hydrate with greater confidence on the go.

How it works

Engineered with medical-grade filtration fibers, the Guardian targets a wide range of contaminants while maintaining a simple, reliable user experience. The pump self-cleans on every stroke, flushing debris back to the source, which helps preserve flow and reduces everyday maintenance in the field.

What’s included in the package

  • MSR Guardian Water Purifier Pump
  • Storage bag with PFAS-free DWR coating
  • Carrying/storage accessories and user warranty information

FAQ

Q: Who should consider the MSR Guardian Water Purifier Pump?

A: Ideal for wilderness adventures, backcountry expeditions, global travel, and emergency kits, with fast filtration and rugged durability.

Q: What maintenance does the Guardian require?

A: The purifier self-cleans with every stroke, avoiding backflushing or cartridge scrubbing, for simple field upkeep.

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Additional Information
Additional Information
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Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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