MSR Marathon Ceramic Replacement Element
The Marathon EX Ceramic Element is the replacement filter element for all MSR MiniWorks, WaterWorks and WaterWorks II water filters. Included with the Marathon Ceramic Element replacement is a ceramic gauge, scrubbing pad and instructions.
Can be cleaned multiple times for low cost filtering. Carbon core removes many chemicals including iodine, pesticides and chlorine. Ceramic Gauge lets you know when to replace the ceramic element.