Guardian™ Purifier Maintenance Kit

  • MSR Guardian™ Purifier Maintenance Kit
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MSR

Guardian™ Purifier Maintenance Kit

$60.95
$60.95
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over $50

Warranty
Protection

A complete maintenance kit for the Guardian Purifier.
  • Includes:
  • ✓ Instructions
  • ✓ Pressure Relief Valve Assembly
  • ✓ O-rings
  • ✓ Cup Seal
  • ✓ Piston
  • ✓ Umbrella valve
  • ✓ Silicone lubricant
  • ✓ Cleanside Cover
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Description

All the necessary components and instructions required to maintain your Guardian purifier’s performance and reliability, packed in a small, convenient carry case for field use.

Tech Specs

Country of Origin:
Made in Ireland

FAQs and Documents

Shipping and Returns

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No Hassle Returns

We accept returns within 30 days of purchase. All returned items must be in new condition. Please be sure no dirt, grass or pet hair is on the item you are returning. Learn More

We Believe in What We Build

At MSR, we take pride in engineering the highest-quality outdoor gear available, and we stand behind everything we make. MSR gear is built to be exceptionally durable and easily repaired. And we back it up with the best service in the industry, all to keep your gear performing for you—and out of landfills. Visit our MSR warranty page for more info.

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Overall rating: 3.6666667 / 5 from 6 reviews.

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Review highlights

Reviews

I haven't had to use

"I haven't had to use any of the replacement parts, but the silicone was perfect for preventive maintenance prior to a backpacking trip and the availability of parts gave great peace of mind while in the forest for 9 days with the Guardian as our primary water filter."

— Jeffrey H. (5/5)

Leaking at the pump head assembly

"Bought a guardian purifier a few months ago and out of the box it leaked in the pump head assembly quite a bit, guessing around the piston o-ring. Emailed MSR/Cascade designs because it probably just needs a new o-ring. Never heard back from them even after a second email. Went and exchanged it and the new one I got does the same thing. Guess I will be buying a $40. 00 to $50. 00 maintenance kit out of my own pocket to fix."

— Chris N. (3/5)

Mikroworx not sucking up very much water.

"I love this filter. I changed jobs, moved and with much regret my filter sat in my unused backpack for a whole hiking season. Good news is I got back on the trails yesterday. I think my O rings are dried up because the filter was having trouble sucking up water. I cleaned the intake before I put it away. Will the Guardian filter kit work for the Mikroworx?"

— Bill R. (5/5)

MSR Guardian breaks on first use -- MSR service does not respond.

"MSR Guardian pump nut broke during first backpacking trap. Cascade Designs has not replied to service requests I made two months ago. I cannot find one online. The annual maintainance kit ford not include that part. I thus have a very expensive failed Guardian Purifier and cannot get the company to help at all."

— Gerald G. (1/5)

Highly recommend

"Perfect, Great kit. This pump will last me till my last breath. 😂"

— Don A. (5/5)

Difficulty Replacing Pressure Relief Valve

"I am having difficulty replacing the Pressure Relief Valve on the Guardian Water Purifier. The instructions state the Pressure Relief Valve should be turned 1/3 of a rotation and then carefully removed. However, after several attempts I am unable to remove the Pressure Relief Valve. Does MSR have any suggestions?"

— Papa S. (3/5)

Q&A