MSR Guardian Annual Maintenance Kit

The MSR Guardian Annual Maintenance Kit has 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. Make sure your Guardian purifier is always functioning at its best.

• Pressure relief valve assembly
• Piston & cup seal
• Relief valve, piston & end nut O-rings
• Umbrella valve
• Clean side cover seal
• MSR food-grade silicone lubricant
• Instructions included

Maintenance Kit Instructions