MSR Water Filter Maintenance Kit

MSR's simple maintenance kit includes everything you need, from o-rings to silicone lube, so you can keep your filter running smooth for years to come.

This small, complete maintenance kit is for the MSR Waterworks II or Miniworks filters. Small enough to take into the field on long or short trips; contents are packaged into round plastic (3.5" diameter) jar with twist-on lid. Contains all maintenance parts: Filter Housing O-Ring, Piston O-Ring, Inlet Foam, Inlet Valve Ball, Outlet Cap, Silicone Lubricant (0.125 oz.).